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#196 [Permalink] Posted on 16th September 2017 14:53
What will happen if earth stops rotating for 1 second only and then resumes again?

The result would be catastrophic. Every person on Earth would die.

When you’re sitting idly, you might think you’re at rest but it isn't.

You’re actually rotating along with the Earth and you wouldn't feel that you’re moving, because everything around you is also moving with the same velocity.

To illustrate this, think back when you were in a moving vehicle and close your eyes. As long as there is no acceleration or a jerk, you wouldn't feel that you’re moving at all.

At the equator, the Earth rotates at a speed of about 1000 mph (1609 kph). (Depending on the latitude, that value can decrease.) That means, you’re also moving with the same velocity.

If the Earth stopped rotating suddenly and you were not attached to the ground, you’d fall and roll over for almost half a mile (0.8 km) in one second if there was nothing in your path.

There would be gigantic tsunamis and insurmountable winds. People would be blown off the ground in some circumstances.

If you were in a (small, rigid) room on the equator and the Earth stopped rotating, you would smash into the wall with a terminal velocity that is equal to five times the terminal velocity of a person falling (head down) from the top of World Trade Centre.

You’d turn into a pile of mush and die without even knowing what had happened.

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#197 [Permalink] Posted on 17th September 2017 11:43
abu mohammed wrote:
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salaam,
I have a question regarding memorisation of the quran and changing myself spiritually because I don't know how, I'm a muslim teenager living in the uk and I feel like I'm drifting away from my religion and this is making me very sad.. I don't know how to use this website very well, I need some help, some one to talk to.
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#198 [Permalink] Posted on 17th September 2017 17:57
sareena wrote:
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Wa ʿAlaykumus Salām,

Welcome to the forum. You could post a new topic in this sub-forum if you want to post or ask something openly. Alternatively, you could also join the Sisters sub-forum and post there. I don't know how that works but it looks like you can subscribe from that page. Otherwise, the authorizers/moderators of the forum can assist you with that, in shāʾ Allāh.

May Allāh reward and aid you for your zeal to build a relationship with Him (subḥānahu wa-taʿālā).
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#199 [Permalink] Posted on 15th December 2017 08:58

Google AI finds exoplanet, bringing alien solar system to 8

Brittany A. Roston - Dec 14, 2017
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Google AI finds exoplanet, bringing alien solar system to 8

Google’s machine learning technology has discovered the existence of a new exoplanet that was missed by NASA the first time around. The exoplanet is located in the alien solar system now known to contain eight planets all revolving around same star, Kepler-90. This makes the Kepler-90 system tied with our own solar system, which also contains eight planets circling the same star. The newly discovered exoplanet is called Kepler-90i.

Machine learning is mostly behind this latest discovery, though it wouldn’t have happened without NASA’s data. The space agency explains that researchers Andrew Vanderburg and Christopher Shallue trained the technology to find exoplanets based on Kepler light readings. These tiny brightness changes are caused by a planet passing in front of a star, but identifying them can be difficult.

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The previously discovered system revolving around the star Kepler-90 was known to contain seven planets; researchers had missed the evidence of the eighth newly discovered planet. Google’s AI, though, found evidence of its existence when sifting through the data, identifying what NASA calls “weak transit signals.”

This new exoplanet, Kepler-90i, is described as being “sizzling hot” and having an orbit that lasts 14.4 days. The star itself, Kepler-90, is located 2,545 light-years from Earth. The other planets in the solar system are similarly named, including 90b, 90c, 90d, 90e, 90f, 90g, and 90h. The newly found 90i planet resides between 90c and 90d, putting it third in line from that Sun-like star.

In talking about the discovery, Vanderburg described the Kepler-90 system as being “like a mini version of our own solar system.” The larger planets are on the outside and the smaller planets are on the inside, “but everything is scrunched in much closer,” he explained. The neural network discovered other exoplanets, as well, such as a sixth planet in the Kepler-80 system; despite some false positives, the system demonstrated a very high accuracy level during testing.

SOURCE: NASA

 

 

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#200 [Permalink] Posted on 14th March 2018 14:32
Stephen Hawking has died. Now he will get to know about God!
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