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  • Using GPS, these trails represent pizza delivery in Manhattan on a typical Friday night.

  • And is this a frog or a orse?

  • It's episode 52 of IMG!

  • This lemon looks yellow to me, and it probably looks yellow to you as well, but not in

  • the same way. You see, here in this room, this lemon is "Subtractively Yellow." It absorbs

  • all visible wavelengths of light except for yellow light, which it reflects onto my retina.

  • But the screen that you are using to watch this video doesn't produce yellow light at

  • all. In fact, it can only produce red, blue, or green light. The really cool, but kind

  • of disturbing thing about this is that here in the room, I am actually seeing "real" yellow

  • light. But you are seeing "fake" yellow. Absolutely no yellow is coming off your screen and falling

  • onto your retina. But it still looks yellow because it's quite easy to lie to the brain.

  • Our retinas contain three different types of cone cells that are receptive to color

  • and each one is best suited to detect a certain color. One is great for blue, the other is

  • great for green and the third is great for red. Notice that there is no individual cell

  • looking for yellow. So, the way we actually see yellow happens like this. The wavelength

  • of yellow light falls between the wavelengths of red and green. And, so, when an object

  • reflects yellow light onto your retina, both the green and the red cones are slightly activated,

  • which your brain notices and says "well, that's what happens when something's yellow, so it

  • must be yellow."

  • All a computer monitor or a mobile phone screen has to do to make you think you're seeing

  • yellow is send a little bit of red and a little bit of green light at you. As long as the

  • pixels and the little subpixels on them are small enough that you can't distinguish them

  • individually, your brain will just say "well, I'm recieving some red and some green, that's

  • what yellow things do...hmm...it must be yellow." Even though it actually is not...

  • Lemons can also produce electricity. A little bit of zinc, a little bit of copper, and boom,

  • you're moving electrons around. But not that many, I mean, the current voltage are quite

  • low. You could run an LCD, but even a potato could do that...

  • If you wanted to run a flashlight bulb, that would take 3,000 lemons. And if you wanted

  • to run a halogen bulb, well, that would take 37,000 lemons. But artist Caleb Charland

  • doesn't care.

  • He spent 11 hours hammering nails into 300 living apples hanging on trees. By connecting

  • them to a household lamp, he was able to make it glow just dimly enough to capture this

  • image with a 4 hour exposure.

  • Less alive and more frightening are Steve Shaheen's sculptures: little dudes with bulb

  • heads desperately trying to plug themselves in.

  • Merve Kahraman's "Revitalizer" never dies. It's a lightbulb surrounded by wax. Now, the

  • wax melts because of the lightbulbs heat, and drips into a special container into all

  • kinds of weird new shapes, but whenever you want you can just flip it so that the new,

  • cooled wax is at the top.

  • But my favorite is the Fukusada wooden lightbulb. It looks like a solid block of wood, but it's

  • actually hollow and chipped to a nearly paper-thin width. When you turn it on you can see the

  • light coming from inside.

  • Combos.

  • Artist Tang Yau Hoong blew my mind this week. We've got clear days and smoke, boats and

  • crocs, whales and hearts, Pie-bike, brains and boxing gloves, day and night, but don't

  • be scared, you can always paint yourself some light. Or just swing on some light.

  • Ok, let's frame it this way. Climbing Wall. This fitness club in Japan uses frames and

  • other pretty interior elements to create a decidedly less rugged climbing wall.

  • But let's get simple. Like, minimal.

  • Thanks to Lego, here are their bricks arranged to represent famous characters. Enjoy.

  • Now for some Art Illusions.

  • Here's a cute couple, but can you see, in this very same image, the baby they will soon

  • have? Or how about these zebras? There's a lion hiding amongst them. Can you find it?

  • Billboards can be clever, but here's a great one that makes it look like someone is pushing

  • out a section of the building.

  • But how many of you will remember seeing it? If we assume that you don't remember experiencing

  • major cultural events before you're 5 or 6 years old, that means that every year there

  • are fewer and fewer people alive who remember experiencing recent historical events.

  • xkcd made this amazing chart to show when, in the future, the majority, more than half

  • of living americans, will not remember being alive when certain things happened. For instance,

  • he calculated using data from the US Census Bureau that 2012, this very year, is the

  • first year in American history since in which fewer than half of living Americans remember

  • being alive in the 1970's.

  • By 2041, most of us won't remember a time when Pluto was actually called a planet. By

  • 2043, most of us alive won't remember living during George W. Bush's presidency. And by

  • 2047, more than half of living Americans will not have been alive to have remembered

  • anything that you did today.

  • Like when you made that funny face in the yearbook. No, no, no, THAT funny face.

  • If you're not following @tweetsauce, you're missing out on daily Vsaucey content, most

  • of which never makes it to a video. So go follow us on Twitter and I'm gonna leave you

  • with another combo. A tessellation, while you listen to Jake Chudnow's "Flan." He made a

  • music video for this song over on his channel, so check that out.

  • And as always,

  • thanks for watching.

Using GPS, these trails represent pizza delivery in Manhattan on a typical Friday night.

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これは黄色ではない (This Is Not Yellow)

  • 109 9
    雅戈泰 に公開 2021 年 01 月 14 日
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