How Do Lighthouses Work?
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- Опубликовано: 6 апр 2020
- Have you ever wondered how a lighthouse works? What a Fresnel lens is? What a lighthouse keeper does? Find out all about lighthouses in this video, as we discover how mariners are directed round the twists and turns of coastal obstacles.
Special thanks:
Artworks Florida - lots of their Fresnel lens and lighthouse footage was used with permission in this video. Check out their channel here: / artworksflorida
Spence the lighthouse keeper - check his channel here for insights into the life of a lighthouse keeper: / @bclighthousekeeper
Andrew Duffield - composer of the Round the Twist TV theme (used with permission)
Other credits:
1st order Fresnel lens - CCBY 3.0 Gabelstaplerfahrer
Daymarks footage - Emre GÜLER CCBY 3.0 (vimeo.com/287902391)
Split Point footage - Aaron Donaldson - On Air Media CCBY 3.0 (vimeo.com/152419769)
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My previous video 🎬: • Who Owns The Sky?
Keeper of the light is without doubt the greatest title imaginable
There is a book with this title written by Donald Graham that is about the history of many of BC's lighthouses. Worth a read if you like lighthouse history.
'The Flame Keeper'...
Light guiders
your Light Guardian, Guardian of the Light. "THE DARKNESS SHIVERS BEFORE YOU!".
Also, if you have to abandon ship and just seeing those flashes of light... It's literally a light of hope.
I worked as a lighthouse keeper for over 15 years. This video is one of the best I have ever seen.
*Not everyone understand how much efforts and time does it take to produce such educational videos. Keep that going.* ❤
Agree!
"Ye're fond of me lobster, ain't ye?"
Hark.
Alright I like your cookin
Haha "Around the Twist" I see what you did there. Well done.
I used to watch this show as a kid.
Round the twist was my favourite show
Yes that was my thoughts around the twist whats the twist a light house here in states usa maybe just few episodes never came back i watch when eerie Indiana came on Fox then around the twist in mid 95 96 was awesome times
*teacher wheels the giant tv into the classroom*
Honestly this channel is underrated
It is
Thank you RUclips gods for recommending me this channel
Thank you for having me on your channel. Your video turned out amazing and I am honored to be a part of it. Keep up with the great content.
Thanks so much for being a part of it Spence! I can't wait for more videos from your channel :)
@@ty.hunt20 That is Point Cabrillo Lighthouse, the footage is from Storyblocks
@@geovannyandaluz3090 hello
Hi TTK...I'm a Lighthouse keeper from india..glad to see your video on Lighthouse service.
Thanks and take care😇👍
Awesome video!! I loved seeing how you went in detail about fresnel len's. Here's a fun fact which you didn't include but I recon is really interesting;
Many of the older and more heavier fresnel len's which are still in operation today are actually floating in mercury, a liquid which has great kinetic properties, allowing these extremely heavy lenses to be operated using small and energy efficient motors. This method is used at both the Cape Byron lighthouse and also the Cape Otway lighthouse in Victoria, which both have very large lenses. You can actually climb the Cape Otway lighthouse and when you're at the top, although the lens is elevated above you so you can't physically see the mercury, the motor mechanism is on display as it operates and it is truly incredible how something so small can power a lens of that size!! Definitely worth visiting if you live in Victoria because the whole light station is open to the public and it has a ton of history attached to the lighthouse. Hope that was interesting, keep making amazing video's, you've earned a new sub
I have worked in an effluent treatment plant that has a huge sprinkler (30 meters across) pivoted in mercury, and rotates like a garden sprinkler without need of any motor . Mercury is highly corrosion-resistant too.
@@tvoommen4688 That's incredible!! Mercury is truely impressive stuff, despite how dangerous it can be!
In dutch a lighthouse is called a ''vuurtoren'' translate: "firetower."
now I know where that name comes from.
The US has Fire towers, but the term refers to tall cabin like structures in the forest to spot forest fires.
The only reason I’m watching this is because I had a dream of me learning how to light up a lighthouse and while watching this my dream was TOTALLY different compared to the real thing🤣
Hope you’re staying safe during the pandemic, love your informative videos!
Indeed! My trip that I mentioned was before all the lockdown and distancing. I have been at home for weeks now! I hope everyone watching is staying home if they can!
Why did youtube recommends this channel so late to me ?
Your video is awesome man!
Yet another great video, TTK. Apart from the simplistic point of a lighthouse, I had no idea about the intricacies of their evolution. Your video shows the creativity and invention of certain individuals of our species. Thank goodness for those people who look to the betterment of all and help us continue forward, safely. Some of the lenses surrounding the lamps are quite beautiful and extraordinary. Thanks again for the knowledge and entertainment and I hope during this difficult time of the global pandemic, you are keeping safe and healthy.
Grant B Yes.
Love the round the twist Easter egg, theme music too! Without my pants
The keeper of light did a very good job explaining what makes a lighthouse a lighthouse.
Great stuff, thanks. I used to live near Inchkeith lighthouse on the Firth of Forth, Scotland. Through binoculars I could see that it had a bank of LEDs (probably) which rotated inside the lamp room. This seemed rather an odd compromise; perhaps the LEDs had to be flat to be bright enough which meant they couldn't be static and flash.
Great video. I thoroughly enjoy it. Thank you.
0:00 I could recognise that tune anywhere
I feel blessed to have this channel recommended. This is really interesting. Great video 💕👍!
"Have you ever, ever felt like this
Have strange things happened,
Are you going round the twist"
Childhood banger here in the UK 🇬🇧🇦🇺
Fishermen still tend to use lighthouses, particularly to fix a good fishing spot, as GPS fixes can wander around from day to day, while taking bearings off of the light and other landmarks will get you to the exact spot every time.
Even the big ships will still take bearings as a backup, and to double-check that their nav plots are accurate.
dun their naviation systems/mobile have GPS
@@rainbowgalaxy1668 He DID say "to double-check" and "as a backup", redundancy, it's a thing that's useful for not dying.
I learned something new today. Thanks
I love light houses im so obsessed with the great lakes especially lake Ontario
I saw a lovely documentary about a ship that travelled around Australia and resupplied lighthouses. It even had a boat with wheels which was lowered over the side and could be driven up the shore.
Around the Twist was an awesome Aussie Tv Show :D
Just discovered your channel. Amazing work. Keep up the good work man!
The strips are white and black because the black ones are visible whith good weather and the whites are visibles during storms
wouldn't the white be hidden during a storm?
You mean more than one colour.
I prefer to differentiate the type as such;
LIGHTHOUSE: a structure with accommodations within, as in the lantern room is set in the roof structure of the dwelling or the keeper lives within the tower or an integrated house structure.
otherwise it’s a LIGHTSTATION, where the keeper lives onsite to maintain and operate the LIGHT TOWER.
Source: I’m a former lighthouse keeper working 13 different stations during my career.
Excellent video
Great work getting the Round the twist reference in!
« The light between between oceans » Anyone who liked this video should see that movie if they haven’t. Really nice vid, made my day ;-)
Interesting and well explained video...loved it.
I used to be on vacation with my family at my grandads brother in Denmark on the island Samsoe. He lived right at the coast, and we could see the Lighthouses on Zealand (Roesnaes and Asnaes) But also pile beacons/Pile lighthouses at Hatter Barn seabed and Hatter Reef. I know the Hatters are piles, as you can just search them up. I found something unsettling yet fascinating about watching that silent flash.
Having relied on lighthouses to guide me, even in the modern electronic world, I cannot express my gratitude and thanks for these ‘beacons of safety’, maned or not.
Sometimes the light in the darkness is more reassuring than the ‘blip’ on a screen.
Light houses are a vibe there sick
I understand alot thank you for this idea 🎉❤😊
Love how he used round the twist at the start
Thanks for this incredible video.
Excellent video!
Great channel dude. Thnx
Some lighthouses have used Strontium-90 as a power source. The Baltimore Harbor Light was one of them.
HAVE YOU EVER?! EVER FELT LIKE THIS?
At 9:16, I'm proud to say that not only have I climbed that lighthouse, I've worked and volunteered at that museum. That's the Ponce Inlet Lighthouse in Florida.
Thanks alot
thanks dude, i learned smth new today! good job
That might be the most Canadian sounding man I've ever heard and its great
The longer I'm outside of Canada, the more I notice the accent. That one just hit me like a brick in the face. But in a good way. Not sure he said "fer sure" or "bud" enough, though.
Great video! Informative from both science and history POV
Good information. keep making such videos...
I live in Northern California, and have sailed from San Francisco north to Bodega bay (The Birds!) south to Monterey. That required me to pass multiple lighthouses and light stations. Point Bonita (at the entrance to SF Bay), Point Reyes (26NM visibility-with the Fresnel lens still in operation) down south to Point Sur Light Station. In the US, a light station is/was a lighthouse too far or difficult from cities to easily provision the lighthouse at the time. I am a lighthouse afficionato.
I'm taking a wild guess here .......
A bloody great big light bulb and some sort of rotating reflector?
That's 10:50 saved!
Glad I could help! 👍😂😂😂
Very interesting and educational. I'd love to see a video specialized on how lighthouses used to work in the Middle Ages and antiquity.I've been searching but can't find it anywhere. In any case, thanks a lot for the good job here. Subscribed.
Thank u for the video!
This is something I always wanted to know.
Similarly in aviation Using NDB and VOR stations. Morse code sound can be used to identify the station used. Nice to see aviation and mariners use similar methods with navigation.
Top-notch video.
Very helpful video 🙂😉👍👍📸🙂😉
Great video
I never knew that individual lighthouses have their own "pulse" signature.
I see light houses at some local airports in my state and hope to visit some of the local coastal ones.
I love your channel.
Nice thanks :)
It is so help full
Great video :)
Thanks 🙏
Very informative video👏👏 keep it up
thank you for the vid =D
good Information dear !!!
I love it.
That was cool
Loved the background music at the end, "Round the Twist" by any chance?
Thanks I always wondered what are they for
Wow 😊
This channel is underrated :(
Subscribed!
informative ...
Protector of light
Super 👌 🌹
Zo class
Unexpectedly, if there is any power shortage in the midnight, what is the back up they have to navigate mariners.
What about when the fog rolls in? What about the horn or bell often in light houses?
you deserve more subs
Round the twist!!!
0:05 have you ever, ever felt like this?
Lighthouses also have Foghorns to tell ships to stay away from the rocks
I like it
Me: About to sleep
RUclips: Wanna know how lighthouses work?
Me: Well well well, let's find out
Fun fact: the Dutch word for lighthouse is "vuurtoren", which translates to "firetower" linking back to it's past.
I’ve always liked lighthouses, probably because in my country we don’t have one we do have a coastline but no actual lighthouses. The closest lighthouse is probably the one in Trieste and is visible from the Slovenian coast and it’s absolutely majestic.
At Queenscliff ships have to navigate in a curve to enter the heads of Port Phillip Bay and so use two lighthouses, a white one and a black one made of bluestone. The correct angle to enter the heads is to line up the two lighthouses.
Some have Fog horns. Like the Portland Bill light house near Weymouth
Wow
👍👍👍
I understand that ship operators around the world contribute to a lighthouse fund and are always interested in reducing costs and unmanned systems.
I always imagined the the light house keeper to be an old dude who lived inside the light house. Idk why but I mean not to far from the truth 🤷♂️ start safe love the video
round the twist
What makes a lighthouse a lighthouse? Primarily the visibility range of the light. Where inland Aids to Navigation typically have a range of up to 5 nm, offshore AtoN up to 15 nm, lighthouses have ranges up to 25 nm (sometimes even beyond that). Where nm stands for nautical miles. That the range is so important for a lighthouse, is proven by the size of the Fresnel lenses, which you simply cannot not put on buoys, for example. And which are not required on inland waters, unless the inland water happens to be a very large lake or inland sea. A second proof, is the height of the light compared to sea level: the higher the light, the larger the visibility range.
With the invention of AIS, the necesity for long range lanterns is being reduced. When lighthouses are converted from tradional incandescent lamps to LED light sources, very often the visibility range is reduced significantly. Eg in Belgium you see a reduction in range from over 25 nm to around 18 nm, when converting to LED.
Despite AIS, visible beacons are still very useful and reliable. You see them everywhere: buoys, Morse U lanterns on offshore installations, port entry lights (PEL lights), sector lights, etc. Typically lighthouses also had fog signals installed, but these are not in use anymore these days. At the Lighthouse Museum in Fraserburgh, Scotland, you can still see them in situ.
Thry are popular some vtg old historical but what is the house 4, now we have electronic we can use sensory no need
The first building in the world and at the same time a lighthouse made of industrial cement. The lighthouse building in Port Said on the Suez Canal in the Republic of Egypt is not used now because it is a museum owned by the world.
I live near Sullivan's island and our lighthouse is the last/newest lighthouse to be built in the United States.
hot damn beat me to it