hahhahahahahahahhahahahahahahaahahahahahhahahaahahahahahhahahh i like to say at shit like u haaa ,the water is dangerous look what china do at japan sea ,.they military issue ,so its safe to build tunnel under water ,the cost will cover by this two country ,korea even dont have line to go to north to china cause have north korea has blocked it ,so its the only way to korea freedom from they peninsular shit aaa aaaa
This tunnel is only beneficial to Japan because Japan is an island, ✔Korean call it ''invasion to Korea'' thru sea turnnel. Japan is a sinking ship that's why Japan is trying escape to Korea thru sea turnel incase Japan is sinking to oceon or major earth quake.
@@James-sn5mgJapan is not a sinking ship it’s a rising sun. I have been to Japan countless times and I have seen that everywhere America Europe Asia are all in the same place of laziness. But Japan and Korea have already made huge benefits for having kids making their population crisis better, Japan and Korea currently have smarter people than Americans. So does China and so I think these nations could be saved within a decade and could even with there smart people. Have a great and stable economy which America is sinking in everywhere young people in America need to study infrastructure and shit.
Correction at 5.34 you state it allows Japan to connect to mainland Asia and beyond. That is geographically correct, EXCEPT that South Korea only has 1 land border and that is with North Korea and the North Koreans have just blown up the railway that was constructed many years ago. As such this is only Japan to South Korea and NOT mainland Asia and beyond.
@@sadako2009In early June 2019 I visited South Korea and took a tour to the Joint Border between the Korea's just before Donald Trump met Kim Jung Un at the same place. That tour also visited a very impressive railway station that South Korea Built to connect to the North. That showed how South Korea was connected all the way to Europe and even the UK by rail. I read recently that North Korea has blown up this connection at their side of the border to avoid it to be used by South Korea in case of an invasion.
@@robbroere1384 hai...such a pity...and that goes back to the point of building this tunnel if its even true..the political situation there is too volatile. Even if the japanese and the S korean are fine...The north korean are in constant provocative mode...This instability makes the risks in building this tunnel enormously high, not just the high price tag for the tunnel alone.
The title of this video is misleading - It's not Japan's plan but more of South Korea's plan. Originally, Japan had this idea back in 1930s-40s, but the idea was abandoned for obvious reasons. (Hint: It's not the empire's land anymore!) In modern era, the most prominent advocate to this idea is the Unification Church, a South Korean cult religion which also has a presence in Japan. So nowadays, it's more of South Korean plan - Though even in Korea, most people seems to oppose it - at least in this comment section.
As a South Korean, I would say that it may be the Unification Church's plan, but neither the South Korean government's nor the people's plan. Most people are oppose to this idea. According to the survey poll conducted in 2021, more than 50 percent of Korean people had objections against the idea of having tunnels between two countries, while 30 percent agreed. I have no idea if the Unification Church agrees with that plan. But even so, the fact that the Unification Church leader's family is Korean and the church supports that does not necessarily mean that Koreans are more likely to agree with that plan. Rather, many Koreans are really suspicious that the tunnel just works for Japan.
ohh really ,so why japan spend more that 300 bilion to build the maglev that just crossing the entire japanese montain from tokyo to nagoya and osaka???/
It's idea, I would rather support building tunnels, connecting Hawaii's islands (especially Big Island, Maui, Oahu, and Kaui) with trains and cars; conecting four islands, would that be something?
Neither does Japan while there is a North Korea. A United Democratic Korean Peninsula with Train Service to a Non-Aggressive China would make sense. So not in the Foreseeable Future.
Even if the volume of all trade ports in Japan is combined, it is lower than one Busan port, so there are constantly sayings to build tunnels in Japan. The only thing that can benefit South Korea if this tunnel is built is its value as a Japanese invasion route for 500,000 South Korean army.
The under water tunnel connecting South Korea with Japan will be at a risk of being target of their ominous neighbor North Korea after it's completion.
Is this an AI video? Is the voice AI? Is the script AI? Doesn't it feel like that? These are kind of annoying. Just filling up space and taking away views from real content creators.
Normally the expectation would be this tunnel between Japan and South Korea would allow easy rail freight transfer, but South Korea railroads are standard gauge while only HSR in Japan is standard gauge with the rest of its rail network including freight being cape gauge 3-1/2 foot and not standard gauge at 4' 8-1/2". There is also some Scottish gauge that is 4' 6", that is not actually used in Scotland around Tokyo. The Channel tunnel between Britain and France carries a lot of double stacked container standard gauge freight trains or did before Brexit. It's possible to have bogie gauge changing trucks to allow single stack container freight, but that is expensive. If starting from scratch with traditional rail the gauge of choice would be Indian gauge at 5-1/2 feet that was developed by the UK under the influence of Brunel gauge at 7 feet between the rails. Indian gauge gives stability for double stack container freight without the use of well cars and allows a 12 foot wide passenger car. The trains a much less prone to derailment. They typically have to hit something to derail. ------- If looking towards the mid 2040s that's when maglevs should be coming into practical, but expensive implementations. China's CF600 maglev EMS prototype train testing at over 600 kph with goals of 800 kph is very likely the first practical high speed maglev. It levitates at at standstill and requires no landing gear. The CF600 is significantly wider than current standard gauge loading gauge width at near 4 meters wide. A new maglev train standard in full scale implementation should start a new much wider loading gauge of about 8 meters wide or more. A double width loading gauge has been envisioned and was provided for at the beginning of the railroad age on 1840s UK dual track railways that were designed to occasionally have double width carriages using the inner rails of the dual tracks. Maglev trains don't have the load limits of the rail wheel interface and are able to support loads distributed across the track bed. An 8 meter wide loading gauge would allow the easy transport of large cargo assemblies overland greatly changing the world. Three TEU shipping containers should be able to fit side-by-side across a cargo car's width and at least 3 high. An 8 meter wide loading gauge would allow stability for three passenger levels. The first level might best be used for cargo with perpendicular side simultaneous drive-on drive-off of automobiles and cargo containers that could take place in a one minute stop. High speed cargo might make profit. Passenger trains tend to not make profit. The second and third levels could be luxury passenger space with vista dome roofs for passengers to see forward watching the scenery. At very high speeds side window views can start to have a strobing effect. This wide multi level passenger train configuration would allow more comfort for the same number of passengers in 1/4 the length of today's popular single level trains that stretch out several city blocks. Supersonic travel between stops spaced a 100 miles a part with a 1 minute stop would have a 13.3% time saving over a top speed of 621 mph (1,000 kph) with acceleration limited to 5ft/s^2 (0.155G). The tractive effort for most locomotives is 0.25 with high speed rail having many wheels not driven. For reasonably spaced stops at 100 mile distance a large subsonic maglev out in the open able to carry wide loads at slower speeds would offer much higher utilization than putting a traditional sized train in a supersonic vacuum tunnel. 5ft/s^2 (0.155G) is the design expectant for slowing down for traffic stop sign. This is not mild if walking around the train cabin. It is the equivalent of walking up or down a 31% slope. People can walk it. Good traction is essential and hand rails needed for stability during jolts. With a 35% slope the human body has to lean so far forward during a climb the stride is greatly shortened and stepping cumbersome. 1105 mph (1778 kph, 1.440 Mach) is reached at a constant 5ft/s^2 acceleration at the midway distance of 50 miles after which it is decelerates at 5ft/s^2. There are subways trains that never reach a steady speed that behave this way between closely spaced stations where they are either accelerating or braking. To reach 621 mph at a smooth 5ft/s^2 acceleration it takes 183 seconds and the same to slow down to a stop. The train spends 15.74 miles accelerating or decelerating. The average speed during this constant acceleration period is half the top speed which means we are taking twice as long as running at a constant 621 mph. We do this twice once for acceleration and once for deceleration which for the travel leg adds this much time of 2(1/2)183 seconds or just 183 seconds. The slowing down and speeding up between 0 mph and 621 mph (1,000 kph) and back to 0 mph adds 3 minutes 3 seconds to the 9 minute 38 second travel time of a constant speed for total time between stops of 12 minutes 41 seconds. This equates to an average travel speed of 473 mph over the 100 mile distance. The 1 minute stop with slowing down and speeding up adds a total of 4 minutes 3 seconds to a 9 minute 38 second travel time at constant 621 mph (1,000 kph). A 1 minute stop is typical for the Japanese Shinkansen. Adding in the 1 minute stop with time spent speeding up and slowing down from 621 mph drops the average speed to 438 mph. The average speed for speed reaching supersonic where the train is ether accelerating or decelerating at 5ft/s^2 is 1/2 of the top speed of 1105 mph for an average speed between stops 100 miles apart of 552.5 mph. It is 1 minutes 49 seconds faster between stops being able to go supersonic or a 14.3% time savings. That is a travel time of 0.18099 hr for 100 miles or 10 minutes 52 seconds compared to 12 minutes 41 seconds when accelerating up to 621 mph instead of acceleration through out the travel time. Adding in the 1 minutes stop drops the average supersonic travel speed to 505.6 mph compared to the subsonic average overall average speed of 427 mph. Which is a 13.3% time saving of the supersonic over the 621 mph top speed for 100 miles with a 1 minute stop. ----------------- Solving for time traveled when using constant acceleration the average speed is needed which is 1/2 the top speed. Accelerating and deceleration continuously at 5ft/s^2 with no non acceleration period other than the transition from speeding up to slowing down for 100 miles. With accelerating at 5ft/s^2 for 50 miles then deceleration to a stop at 100 miles: v= sqr(2ad); v= velocity, a= acceleration (ft/s^2), d= distance (ft). d=50 mi -> 264,000ft, a=5ft/s^2 v=sqr[2 X 5ft/s^2 X 264,000ft] v= 1624.8 ft/s / 1.47ft/s/mph v= 1105 mph This math comes from equating the energies of the system as potential energy from constant acceleration over a distance U=mad; where U=energy, m=mass, a= acceleration, d=distance. And energy-of-motion kinetic energy U=1/2mv^2, since energy (U) is to be the same and velocity (v) is desired equating the two energy equations together mad=1/2mv^2, m(m) mass is on both sides in the numerator and cancels out solving for v: v= sqr[2ad] The average speed is then 1/2 the top speed reached. The time to cover 100 miles is then found. ------------------ Accelerating up to 621 mph at 5ft/s^2 0.155G and down takes 6 minutes and 6 seconds of the total 13 minutes 3 seconds of travel time over the 100 mile distance or 6/13 about 46% of the time is at 0.155 Gs of acceleration. 7 minutes at a constant 621 mph and 1 minute stoped for 8 minutes when there is no linear acceleration able to walk around the train without linear G forces. Many people could walk a grippy carpet floor with grippy shoes without hand grips after some practice at 0.155G from smooth constant acceleration. The assumption is people would use hand rails during these periods when moving about the train at times. Using about 2/3 of the running speed of 621 mph to give a rough average speed of 400 mph wound mean such a train could cross the width of the USA of about 3200 miles in 8 hours. At 621 mph (1,000 kph) airliners are generating about 100°F of thermal heat to their skin from air compression heating and air resistance. Flying at 35,000 feet altitude the outside air temperatures is about -50°F with 100°F of heating bring the aircraft up to about 50°F. On the ground Maglevs at these speeds would create non trivial thermal heating. They may use thermal insulating skins. All very high speed trains need incrementally cheap to free electricity for their huge electrical demands such as their own hydropower generators with unlimited water. New technology nuclear power is likely the next closest option for nearly incrementally free electricity. The Japanese SC maglev has a loading gauge width that is similar to cape gauge railways of 3'6" gauge common throughout Japan that is significantly less wide than the current standard gauge Shinkansen bullet train. The train does not levitate at a stand still and requires retractable landing to be used below 140 kph.
Japan hardly sees a good reason to connect to South Korea by a tunnel, which is essentially an "island" with a closed land border with North Korea. Linking Hokkaido, Sakhalin, and mainland Russia would still make more sense economically and geographically - Well, until Putin invaded Ukraine. So not any more. After all, Japanese people are surrounded by the people not very friendly to them (except Taiwanese), so they feel safer when they don't have land connections to barbari... uhm, I mean foreign countries. They simply don't want it.
Both coasts are far from the main population centres, so it not be economically viable. Even with fast trains to Tokyo, it's too far, airplane is better for that distance. Cargo is cheaper by sea than rail. This is a fantasy.
By the expected finishing time, the numbers of Koreans and Japanese are drastically decreased due to the low birthrates of these countries. Where should the money come from?
Connecting between Korea and Japan makes some sense, but not a good idea. Air travel is only 30 min distance and it would be more safe. But connecting with China by tunnel is not any making sense.
For what? The economic benefits just doesn't justify the billions! Furthermore, South Korea doesn't have the essential energy to link into Japan which they requires badly!
That might be true but for Japan, it's getting to a turning point because of foreign emigration and rising Japanese currency. Those have led to slowth of population decline in the country and a miraculous increment of the GDP in almost 13 years.
Imagine modern cities minus the dense crowd. I don't see a problem, especially with many things being automated. Not every country needs to be crowded as India/China. High population lowers the value of an average individual.
An undersea tunnel, in a geologically active part of the world? At an estimated cost of $170B? Perhaps such a tunnel can exist in a different reality. But, most likely, not in this one. The wall of the tunnel would have to withstand the pressure of the sea, be boundlessly flexible and be 100% watertight. When an earthquake occurs, its' forces would contort the tunnel, horizontally and vertically, in unpredictable ways. During and after an earthquake, the tunnel would have to constantly 'heal itself' in order to maintain its' watertight integrity. I would much rather see this $170B be spent on helping orphaned children, the elderly, and homeless people. Also, advancements in crop science, medical procedures, and medicines would do much more to help humanity than this tunnel ever would.
Yes, technicaly it's possible. But, why and for whom ? Benefits ? In the worst scenario, only one aggresive attack can cripple the 170+ billion plan. TY
This proposed tunnel would greatly fit into China's Belt & Road Initiative. Depending upon restoring respect for and co-operation with, DPRK (N. Korea).
It doesn't make sense. Just use ship or airplane.
Exactly !
The tunnel is only beneficial to Japan because Japan is an island but zero beneficial to Korea.
@@speakupyt4900 ummm with kim jung un in the north sk is practically an island.
It was just a 2 something hour flight from Narita to Incheon last time I was there...🤔🔮🎙
hahhahahahahahahhahahahahahahaahahahahahhahahaahahahahahhahahh i like to say at shit like u haaa ,the water is dangerous look what china do at japan sea ,.they military issue ,so its safe to build tunnel under water ,the cost will cover by this two country ,korea even dont have line to go to north to china cause have north korea has blocked it ,so its the only way to korea freedom from they peninsular shit aaa aaaa
The BAT (Bus and Train) Tunnel depicted at 3:37 is from Brisbane Australia. This concept was scrapped and was replaced by a dedicated twin rail tunnel
South Korea has no benefit from this tunnel. Plus, maintaining this tunnel will be a nightmare.
This tunnel is only beneficial to Japan because Japan is an island,
✔Korean call it ''invasion to Korea'' thru sea turnnel.
Japan is a sinking ship that's why Japan is trying escape to Korea thru sea turnel incase
Japan is sinking to oceon or major earth quake.
@@speakupyt4900 Japan is a sinking ship? What?? lol. Are you on drugs or what
@@James-sn5mgJapan is not a sinking ship it’s a rising sun. I have been to Japan countless times and I have seen that everywhere America Europe Asia are all in the same place of laziness. But Japan and Korea have already made huge benefits for having kids making their population crisis better, Japan and Korea currently have smarter people than Americans. So does China and so I think these nations could be saved within a decade and could even with there smart people. Have a great and stable economy which America is sinking in everywhere young people in America need to study infrastructure and shit.
@@James-sn5mgalso what did that person say they deleted there reply
Correction at 5.34 you state it allows Japan to connect to mainland Asia and beyond. That is geographically correct, EXCEPT that South Korea only has 1 land border and that is with North Korea and the North Koreans have just blown up the railway that was constructed many years ago. As such this is only Japan to South Korea and NOT mainland Asia and beyond.
🤔
exactly bro.... this is a point i wanted to raise up too... N korea is hostile to both ...and i doubt there are rail connections
S.korea is effectively an island
@@sadako2009In early June 2019 I visited South Korea and took a tour to the Joint Border between the Korea's just before Donald Trump met Kim Jung Un at the same place. That tour also visited a very impressive railway station that South Korea Built to connect to the North. That showed how South Korea was connected all the way to Europe and even the UK by rail. I read recently that North Korea has blown up this connection at their side of the border to avoid it to be used by South Korea in case of an invasion.
@@robbroere1384 hai...such a pity...and that goes back to the point of building this tunnel if its even true..the political situation there is too volatile. Even if the japanese and the S korean are fine...The north korean are in constant provocative mode...This instability makes the risks in building this tunnel enormously high, not just the high price tag for the tunnel alone.
The title of this video is misleading - It's not Japan's plan but more of South Korea's plan.
Originally, Japan had this idea back in 1930s-40s, but the idea was abandoned for obvious reasons. (Hint: It's not the empire's land anymore!)
In modern era, the most prominent advocate to this idea is the Unification Church, a South Korean cult religion which also has a presence in Japan.
So nowadays, it's more of South Korean plan - Though even in Korea, most people seems to oppose it - at least in this comment section.
As a South Korean, I would say that it may be the Unification Church's plan, but neither the South Korean government's nor the people's plan. Most people are oppose to this idea. According to the survey poll conducted in 2021, more than 50 percent of Korean people had objections against the idea of having tunnels between two countries, while 30 percent agreed. I have no idea if the Unification Church agrees with that plan. But even so, the fact that the Unification Church leader's family is Korean and the church supports that does not necessarily mean that Koreans are more likely to agree with that plan. Rather, many Koreans are really suspicious that the tunnel just works for Japan.
Japanese do NOT want this ever built.
Good. Koreans Never Want this to Happen.
Koreans don't want it either.
Good. Stay in your radioactive country.
ohh really ,so why japan spend more that 300 bilion to build the maglev that just crossing the entire japanese montain from tokyo to nagoya and osaka???/
There is no such plan unfortunately
A ferry from Korea to Japan takes only about 5 hours. Why waste $170 billion?
naaa ust let them laa japan is 4.7 trilion meanwhile korea is 2.8 trilion ,they are willing to do that
It would be easier to connect Hokkaido to Sakhalin then to the Continent.
There already is a undersea tunnel to Hokkaido.
sakhalin is under russia
Will never happen. Stop it.
It's idea, I would rather support building tunnels, connecting Hawaii's islands (especially Big Island, Maui, Oahu, and Kaui) with trains and cars; conecting four islands, would that be something?
how about connecting hawaii to alaska?hahahaha....
sea too deep
Koreans don’t want this tunnel built
Thankyou, so does Japan. We can finally agree on something.
I cant imagine anybody wanting to connect with Japan.
Even if their relationship somehow became good, the North Korean “Navy” would sever it lol
(stolen(romanian(?)(please laugh)))
Neither does Japan while there is a North Korea. A United Democratic Korean Peninsula with Train Service to a Non-Aggressive China would make sense. So not in the Foreseeable Future.
Lol, no.
Air travel is sufficient.
Even if the volume of all trade ports in Japan is combined, it is lower than one Busan port, so there are constantly sayings to build tunnels in Japan.
The only thing that can benefit South Korea if this tunnel is built is its value as a Japanese invasion route for 500,000 South Korean army.
The under water tunnel connecting South Korea with Japan will be at a risk of being target of their ominous neighbor North Korea after it's completion.
Korea might benefit from this tunnel if they cooperate with Russia.
lol Ya they no different from Northeastern Chinese.
3:33 i like this design so compact and can fit many of space
Please turn off background music.
Is this an AI video? Is the voice AI? Is the script AI? Doesn't it feel like that? These are kind of annoying. Just filling up space and taking away views from real content creators.
true that. they didnt even fact check some details. disapointing
Normally the expectation would be this tunnel between Japan and South Korea would allow easy rail freight transfer, but South Korea railroads are standard gauge while only HSR in Japan is standard gauge with the rest of its rail network including freight being cape gauge 3-1/2 foot and not standard gauge at 4' 8-1/2". There is also some Scottish gauge that is 4' 6", that is not actually used in Scotland around Tokyo.
The Channel tunnel between Britain and France carries a lot of double stacked container standard gauge freight trains or did before Brexit. It's possible to have bogie gauge changing trucks to allow single stack container freight, but that is expensive.
If starting from scratch with traditional rail the gauge of choice would be Indian gauge at 5-1/2 feet that was developed by the UK under the influence of Brunel gauge at 7 feet between the rails. Indian gauge gives stability for double stack container freight without the use of well cars and allows a 12 foot wide passenger car. The trains a much less prone to derailment. They typically have to hit something to derail.
-------
If looking towards the mid 2040s that's when maglevs should be coming into practical, but expensive implementations.
China's CF600 maglev EMS prototype train testing at over 600 kph with goals of 800 kph is very likely the first practical high speed maglev. It levitates at at standstill and requires no landing gear. The CF600 is significantly wider than current standard gauge loading gauge width at near 4 meters wide.
A new maglev train standard in full scale implementation should start a new much wider loading gauge of about 8 meters wide or more. A double width loading gauge has been envisioned and was provided for at the beginning of the railroad age on 1840s UK dual track railways that were designed to occasionally have double width carriages using the inner rails of the dual tracks.
Maglev trains don't have the load limits of the rail wheel interface and are able to support loads distributed across the track bed.
An 8 meter wide loading gauge would allow the easy transport of large cargo assemblies overland greatly changing the world. Three TEU shipping containers should be able to fit side-by-side across a cargo car's width and at least 3 high.
An 8 meter wide loading gauge would allow stability for three passenger levels. The first level might best be used for cargo with perpendicular side simultaneous drive-on drive-off of automobiles and cargo containers that could take place in a one minute stop. High speed cargo might make profit. Passenger trains tend to not make profit.
The second and third levels could be luxury passenger space with vista dome roofs for passengers to see forward watching the scenery. At very high speeds side window views can start to have a strobing effect. This wide multi level passenger train configuration would allow more comfort for the same number of passengers in 1/4 the length of today's popular single level trains that stretch out several city blocks.
Supersonic travel between stops spaced a 100 miles a part with a 1 minute stop would have a 13.3% time saving over a top speed of 621 mph (1,000 kph) with acceleration limited to 5ft/s^2 (0.155G). The tractive effort for most locomotives is 0.25 with high speed rail having many wheels not driven.
For reasonably spaced stops at 100 mile distance a large subsonic maglev out in the open able to carry wide loads at slower speeds would offer much higher utilization than putting a traditional sized train in a supersonic vacuum tunnel.
5ft/s^2 (0.155G) is the design expectant for slowing down for traffic stop sign. This is not mild if walking around the train cabin. It is the equivalent of walking up or down a 31% slope. People can walk it. Good traction is essential and hand rails needed for stability during jolts. With a 35% slope the human body has to lean so far forward during a climb the stride is greatly shortened and stepping cumbersome.
1105 mph (1778 kph, 1.440 Mach) is reached at a constant 5ft/s^2 acceleration at the midway distance of 50 miles after which it is decelerates at 5ft/s^2.
There are subways trains that never reach a steady speed that behave this way between closely spaced stations where they are either accelerating or braking.
To reach 621 mph at a smooth 5ft/s^2 acceleration it takes 183 seconds and the same to slow down to a stop. The train spends 15.74 miles accelerating or decelerating. The average speed during this constant acceleration period is half the top speed which means we are taking twice as long as running at a constant 621 mph. We do this twice once for acceleration and once for deceleration which for the travel leg adds this much time of 2(1/2)183 seconds or just 183 seconds.
The slowing down and speeding up between 0 mph and 621 mph (1,000 kph) and back to 0 mph adds 3 minutes 3 seconds to the 9 minute 38 second travel time of a constant speed for total time between stops of 12 minutes 41 seconds. This equates to an average travel speed of 473 mph over the 100 mile distance.
The 1 minute stop with slowing down and speeding up adds a total of 4 minutes 3 seconds to a 9 minute 38 second travel time at constant 621 mph (1,000 kph). A 1 minute stop is typical for the Japanese Shinkansen. Adding in the 1 minute stop with time spent speeding up and slowing down from 621 mph drops the average speed to 438 mph.
The average speed for speed reaching supersonic where the train is ether accelerating or decelerating at 5ft/s^2 is 1/2 of the top speed of 1105 mph for an average speed between stops 100 miles apart of 552.5 mph.
It is 1 minutes 49 seconds faster between stops being able to go supersonic or a 14.3% time savings. That is a travel time of 0.18099 hr for 100 miles or 10 minutes 52 seconds compared to 12 minutes 41 seconds when accelerating up to 621 mph instead of acceleration through out the travel time.
Adding in the 1 minutes stop drops the average supersonic travel speed to 505.6 mph compared to the subsonic average overall average speed of 427 mph. Which is a 13.3% time saving of the supersonic over the 621 mph top speed for 100 miles with a 1 minute stop.
-----------------
Solving for time traveled when using constant acceleration the average speed is needed which is 1/2 the top speed.
Accelerating and deceleration continuously at 5ft/s^2 with no non acceleration period other than the transition from speeding up to slowing down for 100 miles.
With accelerating at 5ft/s^2 for 50 miles then deceleration to a stop at 100 miles:
v= sqr(2ad); v= velocity, a= acceleration (ft/s^2), d= distance (ft).
d=50 mi -> 264,000ft,
a=5ft/s^2
v=sqr[2 X 5ft/s^2 X 264,000ft]
v= 1624.8 ft/s / 1.47ft/s/mph
v= 1105 mph
This math comes from equating the energies of the system as potential energy from constant acceleration over a distance U=mad;
where U=energy, m=mass, a= acceleration, d=distance.
And energy-of-motion kinetic energy
U=1/2mv^2,
since energy (U) is to be the same and velocity (v) is desired equating the two energy equations together mad=1/2mv^2, m(m) mass is on both sides in the numerator and cancels out solving for v:
v= sqr[2ad]
The average speed is then 1/2 the top speed reached. The time to cover 100 miles is then found.
------------------
Accelerating up to 621 mph at 5ft/s^2 0.155G and down takes 6 minutes and 6 seconds of the total 13 minutes 3 seconds of travel time over the 100 mile distance or 6/13 about 46% of the time is at 0.155 Gs of acceleration. 7 minutes at a constant 621 mph and 1 minute stoped for 8 minutes when there is no linear acceleration able to walk around the train without linear G forces.
Many people could walk a grippy carpet floor with grippy shoes without hand grips after some practice at 0.155G from smooth constant acceleration. The assumption is people would use hand rails during these periods when moving about the train at times.
Using about 2/3 of the running speed of 621 mph to give a rough average speed of 400 mph wound mean such a train could cross the width of the USA of about 3200 miles in 8 hours.
At 621 mph (1,000 kph) airliners are generating about 100°F of thermal heat to their skin from air compression heating and air resistance. Flying at 35,000 feet altitude the outside air temperatures is about -50°F with 100°F of heating bring the aircraft up to about 50°F. On the ground Maglevs at these speeds would create non trivial thermal heating. They may use thermal insulating skins.
All very high speed trains need incrementally cheap to free electricity for their huge electrical demands such as their own hydropower generators with unlimited water. New technology nuclear power is likely the next closest option for nearly incrementally free electricity.
The Japanese SC maglev has a loading gauge width that is similar to cape gauge railways of 3'6" gauge common throughout Japan that is significantly less wide than the current standard gauge Shinkansen bullet train. The train does not levitate at a stand still and requires retractable landing to be used below 140 kph.
Wow! 😮
You're insane
Wow is right. What amazing vision you have 😊
Japan hardly sees a good reason to connect to South Korea by a tunnel, which is essentially an "island" with a closed land border with North Korea.
Linking Hokkaido, Sakhalin, and mainland Russia would still make more sense economically and geographically - Well, until Putin invaded Ukraine. So not any more.
After all, Japanese people are surrounded by the people not very friendly to them (except Taiwanese), so they feel safer when they don't have land connections to barbari... uhm, I mean foreign countries. They simply don't want it.
build an undersea tunnel connecting seatle/mutilteo to whidbey island/clinton... only a few miles and no earthquakes
How on earth is North Korea being totaly ignored? Connection to mainland Asia? South Korea is as isolated as Japan itself.
Both coasts are far from the main population centres, so it not be economically viable. Even with fast trains to Tokyo, it's too far, airplane is better for that distance.
Cargo is cheaper by sea than rail.
This is a fantasy.
True. Cost of sea freight from Inchon to Tokyo is cheaper than ground freight from one end of the tunnel to the other end.
One earthquake will cause $180 billion in damages.
With the kind of earthquakes in this region forget that
By the expected finishing time, the numbers of Koreans and Japanese are drastically decreased due to the low birthrates of these countries. Where should the money come from?
Connecting between Korea and Japan makes some sense, but not a good idea. Air travel is only 30 min distance and it would be more safe. But connecting with China by tunnel is not any making sense.
For what? The economic benefits just doesn't justify the billions! Furthermore, South Korea doesn't have the essential energy to link into Japan which they requires badly!
Built for whom? Both countries are the fastest shrinking countries in the world😂😂😂😂
That might be true but for Japan, it's getting to a turning point because of foreign emigration and rising Japanese currency. Those have led to slowth of population decline in the country and a miraculous increment of the GDP in almost 13 years.
@@makikookamoto1938 Not true at all Check Japan's economic growth rate and how much the population has shrunk recently
AI
I don't think so
Imagine modern cities minus the dense crowd. I don't see a problem, especially with many things being automated. Not every country needs to be crowded as India/China. High population lowers the value of an average individual.
Woow I hope Japan and Philippines build the under sea tunnel too 😊😊😊
8:20 wait ✋️ isn't China in war with India and Pakistan? And isn't the Chinese regime also unpredictable
An undersea tunnel, in a geologically active part of the world?
At an estimated cost of $170B?
Perhaps such a tunnel can exist in a different reality.
But, most likely, not in this one.
The wall of the tunnel would have to withstand the pressure of the sea, be boundlessly flexible and be 100% watertight. When an earthquake occurs, its' forces would contort the tunnel, horizontally and vertically, in unpredictable ways. During and after an earthquake, the tunnel would have to constantly 'heal itself' in order to maintain its' watertight integrity.
I would much rather see this $170B be spent on helping orphaned children, the elderly, and homeless people. Also, advancements in crop science, medical procedures, and medicines would do much more to help humanity than this tunnel ever would.
No benefits because trade wouldn't pass through NK. So the only benefit is between Japan and SK.
Not safe, North Korea would destroy the tunnel.
tunnel would pass through north korea...
say what? pretty sure north korea is in the northern part of the peninsula...
It’s not happening ever. Period.
Lol even if it's built one fuck up everyone in it drowns
Yes, technicaly it's possible.
But, why and for whom ?
Benefits ?
In the worst scenario, only one aggresive attack can cripple the 170+ billion plan.
TY
Hawai to japan tunnel or hongkong to japan is right
Unwise to seismic activity.
Just make it elastic like a hose.
Being a terminal/terminus of a big rail project has big benefits.
Why would Korea give up such prospects?
This proposed tunnel would greatly fit into China's Belt & Road Initiative.
Depending upon restoring respect for and co-operation with, DPRK (N. Korea).
heii if it happens ,i bet japan will go to korea and then use ship to back to okinawa cause korea peninsular not safe ,north korea will angry
What Eurasia connection? Nk blocking
I think this will boost their relationship militarily and economically
accept
😅😊 This time, the invader is invited!!
GREAT SOCIAL CONVEYOR OF MUTUAL PRODUCTIVITY...
what if China or NK torpedoes it?
😏
No need for Japan.
👍👍👍
Sounds fantastic….Trumps coming, everybody, and let's get this pro war rhetoric off the table once and for all
so this is an anti-china channel
Like since host in World Cup in 2002. ⚽️🏟️🇰🇷🇯🇵