| Name |
Views and Comments | Date |
| Sade Wilson |
I think that Archimedes didn't realize that he couldn't move the earth because when you come to think of it and you actually do it sometimes, it doesn't make any sense. |
9/13/2009 |
| Kyra P |
It's impossible to lift something with the same mass as the Earth because we don't have enough time to. |
9/13/2009 |
| Carter G. |
This article is intresting to me because I didn't know that the earth weighs that much. I thought that he could lift the earth if someone continued his hypothesis. When we get back in class can you tell me how much the earth weighs because I couldn't read the number. |
9/12/2009 |
| John |
Are you serious?
You say that earth weighs 6,000,000,000,000,000,000,000 tons in earth's gravity. To actually do this, you would need a space big enough to hold the earth and the length of that lever. Let's say the sun has solidified and it stayed the same size. The sun has a gravity that's 28 times stronger than the earth's(I think). That means all the numbers would've have to been multiplied 28 times. And truly, I don't think that lever's gonna fit on the sun. The sun's diameter is 1,392,000 KM. They say that it's gonna describe through space an arc of 1,000,000,000,000,000,000 km. Alpha Centuri A, mabye?
Probably not. |
8/12/2009 |
| Thalis |
Archimedes would probably claim that he didn’t state anywhere that he could lift the earth by 1 cm with such a lever, neither that the lift would be of a measurable quantity. He would then proceed and just move the lever by 1m in 1 second, and prove him right - because at the same time he would have managed to lift the earth indeed, regardless of how much. |
8/8/2009 |
| Caleb |
Wow i was wondering about this thanks for putting it into detail |
12/4/2008 |
| Claude Good |
I like your drawing of Archimedes "lifting the earth." I have a program called the "Worm Project." We de-worm children around the world. For a flyer to help people know how much can be done with a two cent pill (once every six months) we would like to use the idea that the same principle could be used to "move the earth" for better health by ridding the earth of intestinal worms. We would like to do that by 2020. We are up to a minimum 40,000,000 pills scheduled to be distributed in 2009. Would you give us permission to use it? It could have a powerful effect in helping remove the worm "burden" of the world. Thanks so much! |
11/24/2008 |
| Varun |
Does the reference cited here have this analysis? If not, I read this exact same analysis in "Physics for entertainment" by Yakov Perelman, 1975. |
8/11/2008 |
| Sean |
Note that Archimedes never said how far he'd move the earth, only that he could move it. So even if he only moved the lever in your example by 1 meter, the earth would still move by a non-zero amount. |
12/18/2007 |
| ben kelef |
are u righ |
3/25/2007 |
| Bob Petersen |
How long would the effort arm of the lever have to be if the moon at its mean distance form the earth is used as the fulcrum and Archimedes only wanted to use a force of 100 pounds to move the earth? |
1/28/2006 |
| Vanya Bates |
I think he could have moved the earth |
1/24/2006 |
| Nerd |
Archemedes managed to weigh the Earth....but how? And secondly, getting a much longer leaver makes your theories wrong, because his strength would be amplified a lot more. If you multiply the lenght of the leaver by two thousand, for instance, you must multiply the time by 1/2000th , and so on until he could lif enough. |
11/13/2005 |
| Simple MacHines |
I'm with Archimedes on this one! |
10/18/2005 |
| sharifa |
um i think that the eatrth weights 13,200,000,000,000,000,000,000,000 pounds in 240,000 miles?
|
3/11/2005 |
