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Geobica
Добавлен 17 сен 2014
My website is geobica.com/bl/, where I have some math/science type blog posts.
All of my videos are creative commons with attribution for non-commercial purposes (CC BY-NC), so feel free to use it however you like but credit me as Geobica.
All of my videos are creative commons with attribution for non-commercial purposes (CC BY-NC), so feel free to use it however you like but credit me as Geobica.
What does Venus ACTUALLY look like?
In which I attempt to explain why images of Venus look so different from the real thing.
Correction:
- The image of Neptune I showed at 10:32 has higher contrast than the planet would have to the human eye due to a lack of gamma correction according to Irwin et al., 2023:
academic.oup.com/mnras/article/527/4/11521/7511973?login=false
Other Addendum:
- Something I should've mentioned in the description of SAR at 1:15 is that the time to return is used to determine both the altitudes of points on the surface and to determine how far from the satellite's track the point seen is, which can have a foreshortening effect and create "shadows" behind tall structures where the radar couldn't reach. Th...
Correction:
- The image of Neptune I showed at 10:32 has higher contrast than the planet would have to the human eye due to a lack of gamma correction according to Irwin et al., 2023:
academic.oup.com/mnras/article/527/4/11521/7511973?login=false
Other Addendum:
- Something I should've mentioned in the description of SAR at 1:15 is that the time to return is used to determine both the altitudes of points on the surface and to determine how far from the satellite's track the point seen is, which can have a foreshortening effect and create "shadows" behind tall structures where the radar couldn't reach. Th...
Просмотров: 2 671
Видео
Every Pokémon Dual Typing So Far
Просмотров 507Год назад
A simple visualization I made for fun. Music: Pokémon Ruby & Sapphire - Dive ruclips.net/video/wO419COYB9M/видео.html
The Liberian County Flags Animated
Просмотров 66 тыс.3 года назад
County names are in captions. I love the Liberian county flags because they manage to be a genuinely unique and memorable set of flags for relatively small regions without falling into many of the pitfalls that tend to plague flags made for smaller regions of other countries. Contrast these with the flags of lesser known cities and regions in other countries and you'll see that the vast majorit...
The Mass of the Solar System Visualized
Просмотров 11 тыс.3 года назад
I got the total masses for the asteroid belt and Kuiper belt scattered disc from: Masses of the Main Asteroid Belt and the Kuiper Belt from the Motions of Planets and Spacecraft (link.springer.com/article/10.1134/S1063773718090050) I believe this paper treats the scattered disc as part of the Kuiper belt, though it's often treated as a separate thing. The estimated mass for the Oort cloud comes...
![The Animated State Flags of America [Updated for Mississippi!]](http://i.ytimg.com/vi/mQZHb82fdoo/mqdefault.jpg)
The Animated State Flags of America [Updated for Mississippi!]
Просмотров 148 тыс.3 года назад
Names can be turned on in captions. An animation I created back in April-since then Mississippi has created and approved a new flag, so I redid the animation to include it. I've included the flags of every state, as well as the territories and DC. Music: The US Army Band's performance of The Star Spangled Banner
7 Sorting Algorithms on a Hilbert Curve
Просмотров 11 тыс.3 года назад
Inspired by the countless other sorting videos. I couldn't find one with a Hilbert Curve so I made one. Music: bliip blop bluopblop
History of the Earth's Rotation
Просмотров 208 тыс.3 года назад
A constant daylength during the precambrian era?: www.sciencedirect.com/science/article/pii/0301926887900738 Analysis of a Precambrian resonance-stabilized day length: agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016GL068912 History of the Earth: ruclips.net/video/Q1OreyX0-fw/видео.html Also check out Christopher Scotese's PALEOMAP project, which made the animation of plate tectonics possi...
Pi Four Time Signature
Просмотров 11 тыс.6 лет назад
For really funky rhythms. Subscribe for no quality content.
Langton's Ant 3D
Просмотров 2,3 тыс.9 лет назад
Generation of a three dimensional version of Langton's Ant in Java.
*Technology recording Earth* Earth: *spinning* What are you doing? Technology: Err, nothing. Earth: You sure?
Excellent video, I keep coming back to it thinking about how this is one of those niche but extensive grass roots pieces of research that deserves to be spread far and wide.
Good job! :]
Good job man. I love using these as screensavers! Personally, I'd save Guam, DC and other territories for the end. From a history teacher's perspective, some get confused on what are states and what aren't. And maybe just a little slower time-wise for the states that spun around between 0:19 - 0:49
bubblesort is fookin wonderful to watch on a hilbert curve
0:03 ALREDY MY STATE FLAG‽‽
0:40 this one would be good if not for the liberia flag in the corner
this is made by toddlers admit it
minnnesota and utah changed their flags
Ok
Earth
0:25 Why you got a Both Name Called Maryland?
Looks like the only state that has a mostly green flag is Washington state - probably because they're the Evergreen State!
this includes guam, northern mariana islands, us virgin islands, district of columbia, american samoa and puerto rico
Consider a job at nasa btw
So Venus is almost like Titan, atmosphere too dense to know what its really like. Remember, the human eye can discern a lil bit more than just the visible color spectrum, so if a human manned spacecraft was close to its orbit, they will be able to see more than jusy boring yellow
Terrible. Ooph these are just so terrible
This is such an amazing video I can’t believe it doesn’t have hundreds of thousands of views!!! Really cool work :)
2:52
I saw it from derw
2:52
0:26 not Maryland(a US state)
0:19-0:49 just a spinning seal lol
Earth starts spinning slower than... - Haumea (3 h 56 min 44 s): always has - Ceres (9 h 4 min 27 s): 4333 MYA - Jupiter (9 h 55 min 33 s): 4216 MYA - Saturn (10 h 32 min 36 s): 4113 MYA - Neptune (16 h 6 min 36 s): 2909 MYA - Uranus (17 h 14 min 24 s): 2649 MYA - Makemake (22 h 49 min 36 s): 219 MYA (Current rotation of the Earth - 23 h 56 min 4 s) - Mars (24 h 37 min 23 s): Future - Pluto (6 d 9 h 17 min 32 s): Future - Eris (15 d 18 h 51 min 42 s): Future - Mercury (58 d 15 h 30 min 30 s) and Venus (243 d 0 h 33 min): Never - will tidal lock to the Moon before reaching it. Caveat: this assumes that the other planets have never and will never change their rotation periods, which is very likely false!
wow no way half of the video is just a state seal spinning on a blue background. gotta love how unique most us flags are...
These are good concepts but so poorly executed that it’s a national embarrassment. All we had to do was create a seal and properly embroider it on a flag (like every other state, county, region, country, etc.) … but M S P A I N T. 🤦😬
Update for Utah pls
oh look I found my old comment
0:17 minee
The globe placed over algols history of the earth.❤❤❤
Guam, North Mariana islands, American Samoa, Puerto Rico are all US territories not states (yet)
History of the earth
0:01 Liberia 0:03 Grand Bassa 0:07 Nimba 0:10 Montserrado 0:13 Bomi 0:16 Margibi 0:20 Bong 0:23 Gbarpolu 0:26 Maryland 0:30 Grand Gedeh 0:33 Grand Cape Mount 0:36 Sinoe 0:40 Grand Kru (my fav) 0:43 Rivercess 0:47 River Gee 0:50 Lofa 0:53 Liberia (Again)
Can i have Equirectangular Projection in the video
Hawaii is Arkansas 1:05
Some of these would actually look good without the liberian flag on the corner
10:32 Unfortunately this aged like milk (Considering Neptune's been bleached)
I saw that article and I'm actually (edit in case anyone sees this later: I misremembered what was said, the article claims the contrast was boosted and that's correct so skeptical was the wrong word to use here) skeptical of the claims in it, I can't remember the full details of it at the moment but if I remember right the colors in the image they showed were basically the same as usually assumed when I adjusted the luminosity and contrast, so it was a matter of gain and gamma correction; the hue and saturation weren't too different from the voyager images.
@@geobicaI'd hope you are right about Neptune's colour. I'm not super familiar on colouration terms you've mentioned, so I can't really comment on that. But it seems that "True colour" photos have replaced their original counterparts for the Wikipedia articles of Venus, Uranus, and Neptune
@@aaryanbhatia4939 I just looked back over the article and they do actually have a point, the difference is just brightness and contrast, but the change done to the old voyager image of Neptune is pretty significant, it's a bit like looking at the planet through sunglasses, though even that wouldn't change the contrast so much. It's a different sort of manipulation to what I was talking about with Venus, but yeah if you were there in person, based on what they say in the article it would definitely look a lot paler than the old image. I'll add a correction in the description.
@@geobica While it is quite unfortunate to hear that you agree about Neptune's colour (I was holding out hope it might be slightly more blue than was presented in the article), I applaud the importance you give to scientific accuracy
now update it again bcuz Utah changed their flag lol
0:18-0:49 loading...
The Earth from Algol's History of the Earth
Amazing video 😊 thank you. I enjoyed this. I like how fast you speak 😊
مۇشۇ
Where's Monrovia
that's a city, not a country, it's part of montserrado
Well Check it Out the Montserrado 0:10
🇬🇪: hi. USA Georgia:?
Ohio to Puerto Rico was chefs kiss
The Incredible To This World Beginning Of The Boring Billion I Can 100 Years Ago Later To The Multicort Plush
Pretty good video, I’d be happy to see the calendar one
but how to get the texture
Approximately 25/8, or 201/64 time.
They really got a kid on mspaint to design their flags💀