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 Posted: Sat Jun 02, 2007 5:56 am
What is the difference between momentum and inertia?
(Though of this the other day while pulling my 1-year old daughter in a wagon and it didn't stop when I did and hit my legs.)
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Posted: Sun Jun 03, 2007 8:37 pm
Uhm, can anyone discuss or at least tell me/prove to me that people who are good in English fail at Mathematics and vice versa?
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Posted: Sun Jun 03, 2007 10:11 pm
Fatal Crescent Uhm, can anyone discuss or at least tell me/prove to me that people who are good in English fail at Mathematics and vice versa?
I hadn't noticed such a thing.
XP
I'll do some research...
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Posted: Tue Jun 05, 2007 3:52 pm
why is ice clear yet snow is white even though they are both water?
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Posted: Tue Jun 05, 2007 4:58 pm
nekogal5 why is ice clear yet snow is white even though they are both water?
It is frosted like snowflakes...
Although if you want clear ice cubes, you can try boiling the water before freezing it. Let it cool of course and then freeze it.
And you should have clear ice cubes.
Snow is made up of snow crystals..
But what is more fasinating is that there is no two snowflakes alike.
Snowflake info!
Anyhow the reason the snow apears white is due to the sunlight being reflected by the snow.
It reflects all colors of the spectrum...and the little that it absorbs is absorbed equally over the wavelengths of visible light...therefore it appears white.
Vioja has posted an awsome introduction and information thread (s) to light,
if you would like to know more about light...check it out.
What is Light - Intro
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Posted: Tue Jun 05, 2007 5:43 pm
How does a Theremin work?
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Posted: Tue Jun 05, 2007 10:04 pm
Is that a musical instrument?
The one that play's witout being touched...
Good question.
I would guess that it play's on by somekind of wave's.
Like radio waves...something...
That the antenna's would pick up as your hands move near them.
I'll look into it more.
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Posted: Sat Jun 09, 2007 8:41 am
if you removed every boat from the ocean silmotanusly would the water level fall?
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Posted: Sat Jun 09, 2007 5:52 pm
Yes, minutely. Indeed, if you removed one boat the water level would fall.
Actually measuring the difference would be a tricky task, though. Even assuming it's a bigger change than the Planck length, there's waves to contend with.
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Posted: Wed Jun 13, 2007 8:18 pm
SirKirbance What is the difference between momentum and inertia? (Though of this the other day while pulling my 1-year old daughter in a wagon and it didn't stop when I did and hit my legs.)
But I do know the definitions..
Momentum is a vector quantity that expresses the relation of the velocity of a body, wave, field, or other physical system, to its energy.
(out of the dictionary) Also the tendency of a moving object to continue moving.
Inertia is the resistance of a body to changes in its momentum.
So, because of inertia, a body at rest remains at rest, and a body in motion remains in motion until a force is applied to it.
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Posted: Fri Jun 15, 2007 5:28 pm
Okay, two questions.
1. Why do suicide pilots wear helmets? (sorry it really isnt scientific)
2. Has the Riemann hypothesis been proven yet???
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Posted: Sat Jun 16, 2007 2:31 pm
To question #1:
Just in case they change their mind!
XP
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Posted: Sun Jun 17, 2007 1:18 pm
fur Q #2...I don't believe so, but shouldn't it be called a theory by now? I mean since it's so widely accepted.
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Posted: Mon Jun 18, 2007 3:13 pm
Hm.. i guess so. I'm still waiting for some genius to prove it! xp
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Posted: Mon Jun 18, 2007 3:36 pm
Question: If you somehow survived the severe force of a black hole's singularity point, where would you probably find yourself?
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