2 Many shapes have flat sides. (twitter.com) posted 122 days ago by Dps1879 122 days ago by Dps1879 +6 / -4 9 comments share 9 comments share save hide report block hide replies
Is there like a video or some document detailing these experiments? The video doesn't really show that it just describes it
Use your own eyes, you don't need lasers. Just math and common sense