Researchers Develop the Most Detailed Map of Gravitational Variations Ever 88
schliz writes "An Australian-German team of researchers has developed the most detailed map of gravitational variations ever, using satellite data, gravitational readings and small-scale topographical models. They say the data will help civil engineers and miners, and will be available for free online. Gravitational fields vary because the Earth isn't perfectly spherical. According to the new map, the field is 0.7% greater near the North Pole (9.83ms-2) than at Peru's Nevado Huascaran summit (9.76ms-2). The difference is 40% more than previously expected."
direct link (Score:5, Informative)
Here is a direct link to the map [curtin.edu.au] if you are wondering where you'll be the lightest :)
Don't know their science (Score:3, Informative)
From the article: That means a 100kg person weighs 700g more near the North Pole, where gravity is 9.83ms-2, than at Peru’s Nevado Huascaran summit, where gravity is 9.76ms-2.
They are implying that mass is a function of gravity. Everybody who has had the most basic fundamentals of physics knows that mass doesn't change, only weight(measured in newtons)
Re: Your Mom's House (Score:2, Informative)
Actually the opposite is true. The more mass you have between the gravity source and your self the lower the gravitational pull is.
Though why Everest has higher gravity than a mountain in Peru is odd. Unless the lost city of gold is under that mountain.
The bigger the object the greater the gravitational field. However the more mass you have between yourself and said field point"source" the lower the effects of gravity you feel.
Re:no key or legend (Score:4, Informative)
Of course there isn't. That's why boats float.