A huge Mayan city has been discovered centuries after it disappeared under jungle canopy in Mexico. Archaeologists found pyramids, sports fields, causeways connecting districts and amphitheatres in... continue reading

posted by newtboy 4 months 2 weeks ago • 73 views • 2:29

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

Earth’s outer shell is made of two materials whose different densities and thicknesses give rise to two distinct “levels” on the planet’s surface.

posted by Mekanikal 6 years 8 months ago • 777 views • 3:10

YouTube: This video is about why it's harder to successfully land spacecraft and landers and rovers on Mars than on Earth, or Venus, or the Moon, or Titan, or asteroids. It all comes down to atmospheric... continue reading

posted by PlayhousePals 7 years 7 months 4 weeks ago • 582 views • 2:02

Not sure how this fits in and not very topical but I found it interesting.

posted by vil 8 years 4 months 2 weeks ago • 191 views • 10:05

YouTube description: This unreal experiment allows you to see air movement around any object. Download the music in this video: Song #1: Over Rain iTunes: https://itunes.apple.com/us/album/over-rain-single/id1033... continue reading

posted by Aard Vark (oritteropo) 8 years 6 months 1 week ago • 307 views • 3:47

You’ve seen the Terminator die in molten steel and Gollum die in the fires of Mount Doom, but is it really that accurate?

posted by Mordhaus 8 years 10 months 1 week ago • 310 views • 7:01

How astronauts exercise effectively in a zero gravity environment.

posted by PlayhousePals 9 years 2 months 1 week ago • 556 views • 11:55

Milk. It does a body [no] good! YouTube: There are a few topics that just never get old for me. “Pay for performance”. “overtesting”. “medical myths”. And, of course, my never-ending war... continue reading

posted by PlayhousePals 9 years 5 months ago • 327 views • 4:23

This explains a lot! YouTube: It’s supposed to help keep your body healthy in stressful situations. But the constant stress of our everyday lives means we’re getting overexposed to cortisol. Raychelle... continue reading

posted by PlayhousePals 9 years 11 months 2 weeks ago • 108 views • 2:52

The Professor muses on a world in which ice sinks to the bottom!? -- PV

posted by radx 1 decade 1 year 7 months 1 week ago • 851 views • 6:03

Originally called hydrogen inflammable air when he discovered it until he breathed it in and blew it out over a candle... tested electricity by measuring how much agony it caused him... and did experiments... continue reading

posted by RFlagg 1 decade 3 years 8 months 1 week ago • 920 views • 6:27