Physicist Explains The Concept of “Dimension” in 5 Levels of Difficulty – From Child to Expert

Theoretical physicist Sean Carroll, PhD, is challenged to explain the concept of dimensions to 5 different people; a child, a teen, a college student, a grad student, and an expert. [Wired]

NASA’s Guide To Black Hole Safety [Video]

Have you ever thought about visiting a black hole? We sure hope not. However, if you’re absolutely convinced that a black hole is your ideal vacation spot, watch this video before you blast off to learn more about them and (more importantly) how to stay safe. [NASA Goddard]

Space Mirrors and Other Weird Ways to Fight Climate Change [Science Video]

There are things you can do right now to help our climate–like investing in renewable energy. But today on Reactions, we’re digging into a few of the weirdest climate change-combating ideas out there. [Reactions]

Octopus Changes Color While Dreaming [Video]

Watch as an octopus changes color while sleeping. The event is narrated by Marine biologist Dr. David Scheel, who explains what the octopus might be dreaming about according to the continuously changing color patterns it generates. [Nature on PBS | Via LS]

What makes neon signs glow? A 360° Animation [Science Video]

When the Hoover Dam was completed, it created a huge source of hydroelectric power and zapped a sleepy desert town to life: Las Vegas, Nevada. With the power supply from the dam, Las Vegas soon exploded with vibrant displays. The source of these dazzling lights was electrified neon gas. In this special 360° animation, explore […]

What If Bob Ross Taught Math? [Video]

Here’s a math lesson about logarithms inspired by the legendary painter Bob Ross. [Tibees | Via BoingBoing]

Colony Collapse Disorder: Are the Bees Okay Now? [Science Video]

About 10 years ago, the news was packed with reports about something called colony collapse disorder — a mysterious phenomenon that involved the disappearance of enormous numbers of bees. Then, the news stopped talking about it. So what gives? Are bees safe now? Find out in this episode of SciShow. [SciShow]

The James Webb Space Telescope Is Assembled! Finally!

We have some good news this week for all the James Webb fans out there, as well as a look a some creative chemistry that may help us find the first solid evidence of an exomoon! [SciShow Space]