Morocco has 3/4 of the world’s known reserves of rock phosphate, our main source of phosphorus, so Morocco may be key to our long-term ability to grow food. -yt

posted by eric3579 3 years 1 week ago • 306 views • 3:39

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 3 years 11 months 2 weeks ago • 773 views • 3:10

My nephew has tried Soylent [I can't get past the name]

posted by PlayhousePals 5 years 10 months 2 weeks ago • 17 views • 3:04

Because ... mushroom clouds!

posted by PlayhousePals 6 years 4 months ago • 388 views • 1:14

Minute Physics looks at why, given that the Earth spins to the East, isn't it faster to fly West.

posted by RFlagg 6 years 7 months 1 week ago • 360 views • 2:06

I hate needles!

posted by PlayhousePals 6 years 8 months 1 week ago • 505 views • 3:27

Crops are growing thirsty!

posted by PlayhousePals 6 years 10 months ago • 2,260 views • 3:22

"Vaccines save more than 9 million lives each year ... "

posted by PlayhousePals 6 years 11 months ago • 910 views • 2:48

"Eternal youth wouldn't make us invincible." YouTube: References: Aubert, G. & Lansdorp, P. M. (2008) Telomeres and aging. Physiological Review 88(2): 557–579. http://simonadellemonache.com/dispens... ... continue reading

posted by PlayhousePals 6 years 12 months ago • 579 views • 2:58

"But sometimes severely rotten flesh is the only item on the menu."

posted by PlayhousePals 7 years 2 months 4 weeks ago • 353 views • 2:48

"Our concrete jungles can be hard on wildlife."

posted by PlayhousePals 7 years 3 months ago • 98 views • 3:21

All I can say is, I can't predict what to expect [with relative accuracy] like I used to about 10-15 years ago here in the Pacific NorthWET.

posted by PlayhousePals 7 years 4 months 1 week ago • 140 views • 2:47

"What do the martians call them?"

posted by PlayhousePals 7 years 7 months 1 week ago • 867 views • 2:57

"The intrinsic boy/girl ratio is rigged by Mother Nature."

posted by PlayhousePals 7 years 9 months 3 weeks ago • 331 views • 2:50

YouTube Description: Humans can go inside or put on clothes, but trees spend winter naked in the cold. Why don't they all die?

posted by PlayhousePals 8 years 5 months ago • 536 views • 2:49