technology-news

You might weigh lighter or heavier at different places on Earth!

London, August 20 : A person can weigh differently at various place on Earth because of the fluctuations in Earth's gravity, which a new high-resolution map has showed is greater than previously believed.


The gravity on Earth varies at places because the planet is not perfectly spherical or uniformly dense, New Scientist reported.

Gravity is also low at the equator because of centrifugal forces produced by earth's rotation.

The gravity is also weaker at higher altitudes, like at Mount Everest's summit.

Christian Hirt of Curtin University in Perth, Western Australia, and his co-workers combined information about gravity from satellites and topographic data to map gravity changes between latitudes 60 degree north and 60 degree south.

The map has more than 3 billion points, and having a resolution of about 250 metres.

Their model is capable of pinpointing extreme differences in gravitational acceleration than was earlier observed.

Usual models are capable of predicting a minimum gravitational acceleration of 9.7803 m/s2 at the equator and 9.8322 m/s2 at the poles but the model built by Hirt is able to pinpoint unexpected locations having more extreme differences.

The model found that Mount Nevado Huascaran in Peru has lowest gravitational acceleration, at 9.7639 m/s2, while Arctic Ocean has the highest at the surface at 9.8337 m/s2.

--ANI (Posted on 20-08-2013)

technology-news headlines

Y chromosome was born 180 million years ago: Study

Here are scent-filled bubbles for your kids

In a first, scientists regrow auditory nerves in lab

New groundbreaking technique may help cure diseases by 'editing' DNA

Ancient Antarctica was as warm as today's California coast

Domesticated chili pepper originated in Central-east Mexico

Neanderthals carried more copies of potentially detrimental mutations

'Upside-down planet' reveals new method for studying binary star systems

Learn why homo sapiens survived when others could not

New material prevents plastic from ageing

Know if you are an app addict

Animals with bigger brain size more intelligent

Quick Links: Goa | Munnar | Pondicherry | Free Yearly Horoscope '2014

Comments

Your e-mail:


Your Full Name:


Type verification image:
verification image, type it in the box

Message:

Back to Top