Dorothea Lange’s photos of the incarceration of Japanese Americans went largely unseen for decades. US President Franklin D. Roosevelt passed Executive Order 9066 in February 1942 — two months... continue reading

posted by eric3579 3 years 2 months ago • 83 views • 14:39

Red sprites, secondary jets and newly discovered green afterglow called "ghosts" triggered by red sprites. A dozen vibrant red sprites were recorded on this evening and only two events had the green afterglow.... continue reading

posted by newtboy 4 years 7 months 2 weeks ago • 985 views • 2:32

YouTube description: 50 Years Ago Apollo 13 was preparing to launch on a mission that would become famous for the wrong reasons, 56 Hours into the mission an oxygen tank would explode, blowing the side... continue reading

posted by Aard Vark (oritteropo) 4 years 11 months 1 week ago • 30 views • 12:18

In most developed countries, workers have the right to a certain number of paid sick days. It’s a policy that isn’t rooted in just generosity — during pandemics like the novel coronavirus, it can... continue reading

posted by newtboy 4 years 11 months 3 weeks ago • 432 views • 6:33

YouTube description: Who would have thought baby electric eels would be so cute? I record their electric pulses and think about future research. Catania, K.C., 2015. Electric eels concentrate their... continue reading

posted by Aard Vark (oritteropo) 6 years 3 months 2 weeks ago • 665 views • 3:27

It's all relative. YouTube: We've talked in the past about the positives of Marijuana use. What are the harms? From pregnancy effects to impaired driving to memory and concentration, Aaron will tell... continue reading

posted by PlayhousePals 6 years 9 months ago • 600 views • 8:07

I compare a sample of heavy oxygen water to heavy hydrogen water.

posted by Mordhaus 7 years 11 months 2 weeks ago • 69 views • 11:43

In the Aljarafe region of Spain, there's PS10 and PS20: concentrated solar power towers. They're huge towers surrounded by heliostats: movable mirrors that track the sun and reflect its light onto a giant... continue reading

posted by Mordhaus 8 years 4 months 2 weeks ago • 441 views • 2:42

In this video we show Safety Matches lit with Sulfuric acid. Concentrated sulfuric acid found in drain cleaner may be used. What's happening is the sulfuric acid reacts with potassium chlorate to produce... continue reading

iflscience: If there was ever a video that illustrated why safety goggles need to be worn in the lab, this is it. The guys over at Slow Mo Lab have poured 98% concentrated sulfuric acid over a kitchen... continue reading

posted by Zawash 1 decade 3 months 1 week ago • 173 views • 2:25