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Andy S
Aug Member 2022

Andy S

Posts: 7,862 Rune Posts by user Forum Profile RuneMetrics Profile
Pie Truck said :
Water can be called H2O, I'm sure this has something to do with Latin.
If you traveled the distance of the equator, it would be the same distance as travelling around the world.
Light years are the amount of distance light can travel in a year.
Humans are animals.
There are more humans alive today than all of the alive dead humans of the past.
Birds use their wings to fly.
Humans sadly, can not fly. (Source: my first experience with gravity)
Because of science, we can't have super powers. I propose we get rid of science.

I hope you learned something new today.

Mind *BLOWN*

-Strength through cheese-
There is no spoon

24-Mar-2014 21:11:55

Dracule
Mar Member 2020

Dracule

Posts: 7,459 Rune Posts by user Forum Profile RuneMetrics Profile
There are 5-10 times more stars in the known universe than there are grains of sand on all the world's beaches. But a single grain of sand has more atoms than there are stars in the known universe.
¸‹^¹´', ¸¸·¸·¸¸ ,'`¹^›¸
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Dracule
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¸‹^¹´', ¸¸·¸·¸¸ ,'`¹^›¸
' ´`· ˆ , -¸ . ¸- , ˆ ·´` '
………………..
' ´`· ˆ , -¸ . ¸- , ˆ ·´` '
'·ˆ·'
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I don't like steak
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'·ˆ·'

25-Mar-2014 01:55:21

Dracule
Mar Member 2020

Dracule

Posts: 7,459 Rune Posts by user Forum Profile RuneMetrics Profile
A dolphin-to-English translator now works in real time. It's possible to understand dolphinspeak now :|

The bananas we eat today are a result generations of artificial selection. A "wild" banana is inedible because the flesh is quite hard and is chock full of seeds; which are naturally inedible. About 8000 years ago, humans started the process of domesticating bananas. Over time, the banana became softer and sweeter. The bananas at your local grocery store come seedless as an added bonus and are a result of this lengthy process.

My life is a lie...
¸‹^¹´', ¸¸·¸·¸¸ ,'`¹^›¸
.
Dracule
.
¸‹^¹´', ¸¸·¸·¸¸ ,'`¹^›¸
' ´`· ˆ , -¸ . ¸- , ˆ ·´` '
………………..
' ´`· ˆ , -¸ . ¸- , ˆ ·´` '
'·ˆ·'
.………
I don't like steak
……….
'·ˆ·'

29-Mar-2014 23:43:23

Finance
Apr Member 2012

Finance

Posts: 56,428 Emerald Posts by user Forum Profile RuneMetrics Profile
One of the coolest things I learned in elementary physics was one of Kepler's laws for planetary motion. For any bodies orbiting around the same object (i.e. the planets orbiting around the Sun),

(radius of orbit)^3/(period of orbit)^2 = G*(mass of central object)/(4*pi^2)

The right side of the equation depends only on the characteristics of the Sun. As an example, if you know the distance from the Earth to the Sun, and the distance from Jupiter to the Sun, as well as Earth's orbital period (which is 1 year), you can calculate Jupiter's orbital period.

I also find it interesting how the electric and gravitational forces are so similar in equation form.

Felectric = k*q1*q2/r^2

Fgravity = G*m1*m2/r^2

How is it that two entirely separate forces both obey inverse square laws?
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30-Mar-2014 08:04:48

Covet
Oct Member 2010

Covet

Posts: 1,782 Mithril Posts by user Forum Profile RuneMetrics Profile
Comets are made of ice and as they travel to the inner Solar System solar radiation causes materials in the comet to vaporize. The gas forms the tail of the comet that always points away from the sun.

For those interested in space I would suggest watching Cosmos: A Spacetime Odyssey hosted and narrated by Neil deGrasse Tyson. It has proven to be interesting thus far. :)

30-Mar-2014 08:58:29

beebfan2003

beebfan2003

Posts: 388 Silver Posts by user Forum Profile RuneMetrics Profile
Finance said :


I also find it interesting how the electric and gravitational forces are so similar in equation form.

Felectric = k*q1*q2/r^2

Fgravity = G*m1*m2/r^2

How is it that two entirely separate forces both obey inverse square laws?

im no physicist, but i think the reason these two equations are similar is because both the gravitational and EM fields are spherical. the surface area of a sphere is 4pir^2 so that is why these forces obey a inverse square law.

30-Mar-2014 11:31:05

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