Job Interviewer: What Would You Describe As Your Biggest Weakness?

site that you can type in the definition of a word and get the word

site for when you can only remember part of a word/its definition 

site that gives you words that rhyme with a word

site that gives you synonyms and antonyms

The hunter’s moon—also known as sanguine moon—is the first full moon after the harvest moon, which is the full moon nearest the autumnal equinox. Here the Moonlight Illuminates Ice crystals in the upper atmosphere to give a rainbow halo effect around the Moon. Also known as a Lunar Corona. Taken last night in my Garden with a Canon 550D and Canon 100-400 L is lens. Credit James Dyson Location Warrington Cheshire England

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for all the space ppl out there, nasa is doing a live feed of earth in space on youtube rn! 👀💫🌍

Milo Manara - Storia dell’Umanità

How the fuck are they all mutable. I did not expect this.

The difference between an easy model and a complicated one.

Heliocentrism and geocentrism

Question: If 2 black holes get near each other, can they then gravitationally pull matter out of the other black hole & back into “normal” space?

The short answer is no.

A black hole (in the traditional sense) is defined as an object that has collapsed so that its radius is equal to, or less than, the Schwarzschild of the object.

What does this mean?

Every object has a Schwarzschild radius; this is the point at which an object’s mass is so compressed that the gravitational influence overpowers the other forces of nature and it collapses to a singularity.

Of course, not every object is massive enough to collapse to its Schwarzschild radius. The Earth’s Schwarzschild radius, for example, is about the diameter of a small marble. If you were to apply enough energy to the Earth and compress its mass to that size, it would collapse to form a black hole. The same is true for humans, except I’d need to compress you to a point some 10-million times smaller than a marble in order to turn you into a black hole.

So, what is special about the Schwarzschild radius? This is the point at which the escape velocity for the object is equal to the speed of light. Obviously, since you can’t travel ,or faster than, the speed of light you can’t get out of a black hole neither can another black hole pull you out.

It’s important to realize that, outside of the Schwarzschild radius (also known as the event horizon), spacetime is normal. You can interact with a black hole in the same ways you interact with any other object of mass.

Image credit: NASA/CXC/A.Hobart

Article: From Quarks to Quasars

The primes are often thought of as behaving like a random sequence, but there are patterns in their digits. The first frame shows how many of the first 100 primes end in 1, 3, 7 and 9. They all occur roughly the same number of times, so the four squares are almost exactly the same shade of red. The next frame shows how frequently a prime ending in 1 is followed by a prime ending in 3 - and so on. A structured pattern emerges, with the final frame showing the distribution of final digits in strings of 8 consecutive primes (for the first 2 million primes).  [recent news] [visualization from] [code]