Thursday, November 20, 2008

Gravity hurts my brain


Why can't we explain gravity?

Any ideas or researched answers [with references] that could help my poor brain cope with it?




7 comments:

Gaboose said...
This comment has been removed by the author.
rosiegal said...

Yeah, it confuses me too!!! But i think it really cool. Athough I wish that gravity could be un-gravitiesed (or what ever its called) for a little bit, so we could fly!!!

Roo said...

We can explain it. But we don't know how it works.
After-school today, Mech-boy and I stayed for about 50 minutes talking about this.
Some of the thing we talked about were:

-Magnetics. Do we stay on the Earth because of the Earth's magnetic field and the sun/moon's magnetic field pulling us the same amount keeping us at the certain level.

-Rotation. How do we stay on Earth if it is spinning all the time? This question is shown when a person is spinning holding a ball by an elastic string. Say the person is the Earth and the ball is someone on Earth, the ball would go flying away from the person, but if the ball spun it would coil up on the elastic.

"The Earth is sslloowwiinngg dddooowwwnnn"
-Mech-Boy

I think it it because our particles are attracting to every other particle out there. Since everything is pulling it keeps our pull to everything the same meaning we stay in the middle.

The standard formula for gravity is:

"Gravitational force = (G * m1 * m2) / (d2)
where G is the gravitational constant, m1 and m2 are the masses of the two objects for which you are calculating the force, and d is the distance between the centers of gravity of the two masses."

This is what it said on this website:
http://www.howstuffworks.com/question232.htm#

HamilTRON said...

Simply their is alot of universe. We have only explored a tiny bit of it.

I think that we cannot explain or learn every single particle of matter in the universe.

I think we might have a break-through revolutionary piece of technology that will help us somehow.

There has to be something. Hundreds of years ago people drew a map of the globe (it was very inaccurate!) and they thought Earth was flat. But infact it is not.

The following is a scientific investigation I have done last year.

Last year I wondered if lighter stuff would drop faster than heavier stuff. I got a feather and a 2 dollar coin. The 2 dollar coin dropped faster than the feather. 1 nil to heavy. I noted that the feather was a lighter mass and had less force on the air. Whilst the coin had a heavier mass, resulting in heavier pressure. I then thought what will happen if the object was just lighter then the other. I got a toy crab and a toy lobster. The lobster was a bit heavier then the crab. I released the objects and found that they dropped at litreally the same time. I had to get a closer look. I then saw that the lighter object just just touched the bottom by a little smidget. I then proved my theory, that lighter objects can fall quicker to the ground if the object is delivers a great amount of mass compared to the heavier object. But objects like a feather delivers a minor mass, then the heavy object falls quicker.

HamilTRON

Nei-Nei Neina-Marie said...

It doesn't confuse me. To me, it seem quite obvious. I suppose becuase I look at it not in the way where it can not be explained, but in the way that says "It is the force that holds things down."
Simple.
I was brought up that way.

mech boy said...

Hamiltron, what do you mean about "I think that we cannot explain or learn every single particle of matter in the universe." To me that doesn't make sense.
Hamiltron, I think that when you were talking about the feather being slower you meant wind resistence.

For me, the easiest explaination is;
things with mass attract other things with mass, the larger the mass,the larger the attraction.

The discussion with Mr Woody was very good. It got my brain working- which it hasn't been doing too often lately.

P.S. I have a blog post on the K.T. impact.

MrWoody said...

oh my dog! you guys are so amazing - it nearly made me cry - but not this time! try harder...
;-)
[and i don't mean by being awful]

to explain, Mechboy, Hamiltron, Roo and Gaboose have written some very brain tickly things here. thank you very much. And to the gals, i enjoyed your comments too
Hilzy - right back at ya re the flying.
NM - a powerful insight.
:-)