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 3 years 9 months ago • 984 views • 2:32search results matching tag: earth density
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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 5 years 9 months 2 weeks ago • 777 views • 3:10YouTube: 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 6 years 9 months 1 week ago • 582 views • 2:02Originally 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 2 years 9 months 3 weeks ago • 920 views • 6:27- 1