Welcome to our new Science and Space forum!

Grumpy

Well-Known Member
Water is a limited resource in space - because of this, astronauts must resort to recycling their own waste. NASA astronaut Scott Kelly consumed approximately 730 liters of recycled urine and sweat during his yearlong mission.

Just thought you'd like to know...YW
 

jazz lady

~*~ Rara Avis ~*~
PREMO Member
Toilet paper is a relatively recent invention, but the ancients still had to wipe. Roman philosopher Seneca, who lived from 4 B.C. to A.D. 65, recorded the use of a sponge attached to a stick that did the job. Between uses, the tool (called a tersorium) sat in a bucket of salt water or vinegar water.
 

RoseRed

American Beauty
PREMO Member
Toilet paper is a relatively recent invention, but the ancients still had to wipe. Roman philosopher Seneca, who lived from 4 B.C. to A.D. 65, recorded the use of a sponge attached to a stick that did the job. Between uses, the tool (called a tersorium) sat in a bucket of salt water or vinegar water.
Only you would know that.
 

DoWhat

Deplorable
PREMO Member
Assume a situation.
There is an earthquake which is one point higher on the Richter scale than another earthquake which is ten times powerful. Now how much powerful do you think the earthquake will be if it was just 1/2 a point higher on the Richter scale?
 

Monello

Smarter than the average bear
PREMO Member
151024
 

Grumpy

Well-Known Member
Assume a situation.
There is an earthquake which is one point higher on the Richter scale than another earthquake which is ten times powerful. Now how much powerful do you think the earthquake will be if it was just 1/2 a point higher on the Richter scale?
Chris will be along shortly
 

Ken King

A little rusty but not crusty
PREMO Member
Assume a situation.
There is an earthquake which is one point higher on the Richter scale than another earthquake which is ten times powerful. Now how much powerful do you think the earthquake will be if it was just 1/2 a point higher on the Richter scale?
5.623 times more energy released.
 
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