字幕表 動画を再生する 英語字幕をプリント Hey Vsauce, Michael here. If we turned the moon into a giant disco ball day and night would not be a disco party instead of diffusely reflecting sunlight onto all of us a mirror tiled moon would reflect spectacularly you would be lucky to momentarily catch a single reflected beam of sunlight now with the help visuals by Nick from Yeti Dynamics who you should subscribe to immediately let's see what would occur if a disco ball moon actually happened here's the earth with an imaginary screen behind it so we can track the path of reflections from a disco ball moon. It's 3,012 mirror tiles are ten kilometers thick in between one hundred and 150 kilometers across and as you can see the beams of sunlight they reflect would only intersect with earth briefly and rarely a few every month or so would race past at more than 20,000 kilometers a second from the service a Earth they'd just be tiny flashes in the sky 0.1 percent as bright as the regular Sun and would last a fraction of a second. The Earth's Sun and moon just aren't an ideal locations for disco ball effects but if our disco ball moon was closer and orbited earth not 384,000 kilometers away but less than 450 as far as the International Space Station does it would be torn apart by gravitational title forces. Shoot. Also the moon doesn't really rotate from our perspective like a fun disco ball it librates but it's starting to look like instead of an awesome lunar party decoration a disco ball moon would just be a lunar party pooper so for the sake of investigation let's allow this disco ball moon to not be torn apart and allow it to spin in the sky now we're talking occasionally we would get glittery reflections on the dimmer image of the Sun. From the surface of Earth this is what we would see you know being able to see Earth reflected is almost cooler it's like being a bacterium on a giants face who's looking into a mirror you can see the giant but not yourself it kinda makes you feel small but it would be a great way to take planetary selfies so let's watch a mirror the width of the moon orbit as close as the ISS does from the surface of Earth it would look like this the strobe lights around the edge by the way are ten kilometers across pretty cool now finally let's take a look at the moon as a rotating disco ball from low orbit the moon is not a disco ball and likely never will be it's just a diffuse source of illumination but its Illuminating in a different way to imagine what would occur if that actually happened. Woah and as always thanks for watching my in in of
B2 中上級 米 月がディスコボールだったら? (What if the Moon was a Disco Ball?) 53 6 何紹愷 に公開 2021 年 01 月 14 日 シェア シェア 保存 報告 動画の中の単語