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Showing posts from March, 2021

Extreme Cold Warning in the United States: The Science Behind the Deep Freeze

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Extreme Cold Warning in the United States: The Science Behind the Deep Freeze Introduction As temperatures plummet across the United States, extreme cold warnings have gripped large portions of the country. The bone-chilling cold isn't just inconvenient—it's dangerous, affecting millions of lives and disrupting daily activities. But what causes such extreme cold spells, and how does science explain these phenomena? Let’s delve into the meteorological and scientific reasons behind these frigid temperatures. What is an Extreme Cold Warning? An extreme cold warning is issued when temperatures or wind chill values are so low that they pose a risk to public safety. Frostbite, hypothermia, and other cold-related illnesses become real threats in these conditions. The thresholds for such warnings vary depending on the region but are typically issued when the wind chill drops to dangerous levels. The Science Behind the Arctic Chill Polar Vortex The primary driver of extreme cold in the...
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Asteroid 2001 FO32: When will it pass Earth and can I watch it?

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Asteroid 2001 FO32: When will it pass Earth and can I watch it?   Astronomers and scientists will be peering into space today as the Earth experiences the largest asteroid flyby of the year. A gigantic chunk of space rock, officially known as Asteroid 231937 (2001 FO32), is hurtling past our planet at a speed of 77,000 mph (124,000 kph) later today. At 1.7km tall, it’s bigger than Ben Nevis and more than twice the size of the tallest building on Earth – the Burj Khalifa.  It will be the largest asteroid to pass by the Earth this year. Because 2001 FO32 is coming within 93 million miles of Earth, it’s designated a ‘Near-Earth Object’ (NEO) by Nasa. The space agency keeps a particularly watchful eye on these asteroids. But, in this case, says there’s nothing to worry about. A size guide showing how big Asteroid 2001 FO32 is (Metro.co.uk) ‘We know the orbital path of 2001 FO32 around the sun very accurately, since it was discovered 20 years ago and has been tracked ever since,’ ...
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What is Quantum Entanglement? - Detailed explanation

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What is Quantum Entanglement? Firstly: One reason I feel compelled to write this is that many people say something like this: “Take two dissimilar objects that come in a pair (e.g. gloves), put them in two identical boxes, forget which box is which and send them to distant locations. Look inside one box and bam! you immediately (re)discover what’s in the other box! And that is just like entanglement!” This is  worse than useless  as an analogy for quantum entanglement. Physicists call this sort of system a  classically correlated mixed state , and it is totally different from entanglement. Obviously, there is nothing marvellous or extraordinary about classical correlation, and anyone who has ever listened to the terms in which physicists talk about entanglement must suspect that this is a cop-out. If you have ever heard this, please un-learn it right now, and read on. Anyone who confuses entanglement with classical correlation deserves to be glove-slapped. Now, to properl...
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