On a Day like This

Just a lot of random fandoms, and a bit of me too. Maybe. Sorta.
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Posts tagged "physics"

thatscienceguy:

Math is Beautiful, math is the absolute truth and that makes it beautiful. Mathematicians even go so far as calling it an art form. 

mathematics, rightly viewed, possesses not only truth, but supreme beauty — a beauty cold and austere, like that of sculpture, without appeal to any part of our weaker nature, without the gorgeous trappings of painting or music, yet sublimely pure, and capable of a stern perfection such as only the greatest art can show - Bertrand Russel 

The beauty in math cannot be found, you cannot discover the beauty of a symphony - you either see it or you do not, in the same way you either see the beauty of math or you do not.

One of the most amazing equations, in my opinion, is the Lorentz factor, 

γ = (1 - V^2/C^2)^(-1/2)

Virtually all of the mathematics behind Einsteins theory or special relativity relates back to this one tiny, simple equation.  And that is Beautiful.

(via physicsphysics)

physicsphysics:

Some people use Physics for good… Some use it to design a roller coaster that will kill you by the end of the ride. Behold, the Euthanasia Coaster!

“Euthanasia Coaster” is a hypothetic euthanasia machine in the form of a roller coaster, engineered to humanely – with elegance and euphoria – take the life of a human being. Riding the coaster’s track, the rider is subjected to a series of intensive motion elements that induce various unique experiences: from euphoria to thrill, and from tunnel vision to loss of consciousness, and, eventually, death. Thanks to the marriage of the advanced cross-disciplinary research in space medicine, mechanical engineering, material technologies and, of course, gravity, the fatal journey is made pleasant, elegant and ritualistic. Celebrating the limits of the human body but also the liberation from the horizontal life, this ‘kinetic sculpture’ is in fact the ultimate roller coaster: John Allen, former president of the famed Philadelphia Toboggan Company, once sad that “the ultimate roller coaster is built when you send out twenty-four people and they all come back dead. This could be done, you know.”

Video

skeptv:

James Clerk Maxwell: The Greatest Victorian Mathematical Physicists - Professor Raymond Floud

James Clerk Maxwell (1831-1879) was one of the most important mathematical physicists of all time, after only Newton and Einstein. Within a relatively short lifetime he made enormous contributions to science which this lecture will survey. Foremost among these was the formulation of the theory of electromagnetism with light, electricity and magnetism all shown to be manifestations of the electromagnetic field. He also made major contributions to the theory of colour vision and optics, the kinetic theory of gases and thermodynamics, and the understanding of the dynamics and stability of Saturn’s rings.

This talk was a part of the conference on ‘19th Century Mathematical Physics’, held jointly by Gresham College and the British Society of the History of Mathematics. The transcript and downloadable versions of all of the lectures are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/19th-century-mathematical-physics

Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There is currently nearly 1,500 lectures free to access or download from the website.

Play Time: 52:32

by Gresham College.
Website: http://www.gresham.ac.uk
Twitter: http://twitter.com/GreshamCollege
Facebook: http://www.facebook.com/pages/Gresham-College/14011689941

(via candidlycara)

11:15pm: walked to corner gas station to get a pack of cigarettes. planned to have it last me for 3 days or more.

11:45pm: back at apartment complex, smoking a cigarette at a picnic table before planning to head back to apartment to go to sleep.

12:00am: neighbor came out with fixings for drinks, asked me if I’ll be joining them. Decided why the fuck not.

12:30am: learned everyone’s names, started a drinking card game of FUBAR. decided I like these people.

1:00am-5:30am: beer pong (of which my team lost horribly but had great fun), started talking about physics, god, math, and philosophy. ended up talking far into the early morning.

6:00 am: went back home. laid down. got back up. threw up. took shower because kind of cold. decided to stay up until hubby got home from work so we could go get breakfast.

6:30am: still thinking about all the things Nick and I talked about. concluded he was a smart man, and had a strong trajectory towards brilliance. still feel humbled and proud (yes that’s possible) in that Nick declared me brilliant, my mind beautiful, and that I am someone who restores hope in his heart. one of the best discourses I’ve ever had, and I’m happy I went to get cigarettes last night.

physicsphysics:

jtotheizzoe:

It turns out that exploding bubbles of hydrogen filmed at 16,000 frames per second are one of the coolest things on Earth. 

This is part of a study of the fluid dynamics of various explosive mixtures of hydrogen and air. The video talks a lot about the idea of “buoyancy”, which for flames and explosions relates to their ability to push out and displace the air around them, use up all the available fuel, etc.

Of course, if you’re not into the science side of it, just skip ahead in the video to about 1:20 and then pick your jaw up off the floor.

As per PhysicsPhysics recommendation, immediately stop what you are doing, and watch this video in 1080p in full screen. We promise you will have no regrets!

physicsphysics:

It’s Official! Water Ice Discovered on Mercury

It’s time to add Mercury to the list of worlds where you can go ice-skating. Confirming decades of suspicion, a NASA spacecraft has spotted vast deposits of water ice on the planet closest to the sun.

Temperatures on Mercury can reach 800 degrees Fahrenheit (427 degrees Celsius), but around the north pole, in areas permanently shielded from the sun’s heat, NASA’s Messenger spacecraft found a mix of frozen water and possible organic materials.

Evidence of big pockets of ice is visible from a latitude of 85 degrees north up to the pole, with smaller deposits scattered as far away as 65 degrees north.

The find is so enticing that NASA will direct Messenger’s observation toward that area in the coming months — when the angle of the sun allows — to get a better look, said Gregory Neumann, a Messenger instrument scientist at NASA’s Goddard Space Flight Center in Maryland. [Latest Mercury Photos from Messenger]

“There is an ongoing campaign, when the spacecraft permits, to look further northward,” said Neumann, the lead author of one of three Mercury studies published online in the Nov. 29 edition of the journal Science.

Researchers also believe the south pole has ice, but Messenger’s orbit has not allowed them to obtain extensive measurements of that region yet.

Messenger will spiral closer to the planet in 2014 and 2015 as it runs out of fuel and is perturbed by the sun’s and Mercury’s gravity. This will let researchers peer closer at the water ice as they figure out how much is there.

[More at Space.com]

aamukherjee:

The Origin of Quantum Mechanics

I would watch an hour long documentary of this man drawing physics if I had the opportunity.

(via candidlycara)

sciencesoup:

Like A Falling Apple

Formulated in 1687, Newton’s Law of Universal Gravitation was a turning point in physics. While the legend of the apple falling on his head is an exaggeration of the truth, Newton did have a brilliant insight: that every object in the universe attracts every other object. The force of attraction between two objects depends on only two things: the mass of the objects, and the distance between them. So, more massive objects exert a stronger force, while more distant objects exert a weaker force. Newton was able to formulate a simple equation to describe this, pictured above: force is equal to Newton’s gravitational constant, multiplied by masses of the objects, then divided by the square of the distance between the objects. What’s remarkable is that the law truly is universal—not only can it predict how things move here on Earth, but it can also predict the movements of the moon, planets, stars and even galaxies millions of lightyears away. Newton believed that the movement of every object in our universe could be predicted, but we know now that while his theory generally holds true, it is not precise. Einstein’s theory of general relativity had to step in to fill the holes.

(Image Credit: The Wonders Collection)

(via candidlycara)

acegeckers3d:

Believe it or not, but this is actually what our galaxy looks like right now. Apparently we’re still in a collision event with the Sagittarius Galaxy… Interesting.

(via candidlycara)

thenoodleboo:

Well, you broke physics. Way to go.

PHYSICS YOU ARE DRUNK

(via cptprocrastination)

physicsphysics:

This Is the Most Detailed Image of the Universe Ever Captured

NASA has just published the most detailed view of the Universe ever taken. It’s called the Extreme Deep Field—or XDF for short. It took ten years of Hubble Space Telescope photographs to make it and it shows some the oldest galaxies ever observed by humans, going 13.2 billion years back in time.

It’s a mindblowing, extremely humbling view. Not only for what it shows, but for what it doesn’t show. While this image contains about 5,500 galaxies, it only displays a tiny part of the sky, a ridiculously small slice of the Universe. As you can see in the image below (make sure to expand it to see it complete), the photo only focus on a small area of the constellation Fornax.

This illustration compares the angular size of the XDF field to the angular size of the full moon. A finger held at arm’s length would appear to be about twice the width of the moon in this image.

This graphic shows (click to expand) the foreground (galaxies less than 5 billion light years away from us), background (between 5 and 9 billion years ago) and very far background galaxies (more than 9 billion years), which are “one ten-billionth the brightness of what the human eye can see.

Click Here to download the full image (13mb TIFF image)

physicsphysics:

NASA Starts Work on Real Life Star Trek Warp Drive

“Perhaps a Star Trek experience within our lifetime is not such a remote possibility.” These are the words of Dr. Harold “Sonny” White, the Advanced Propulsion Theme Lead for the NASA Engineering Directorate. Dr. White and his colleagues don’t just believe a real life warp drive is theoretically possible; they’ve already started the work to create one.

Yes. A real warp drive, Scotty.

When it comes to space exploration, we are still cavemen. We got to the Moon and sent some badass robot to Mars. We also have those automatic doors that swoosh wide open when you get near them, but that’s about it. It’s cool, but we are far from being the space civilization we’ll need to become to survive for millennia.

With our current propulsion technologies, interstellar flight is impossible. Even with experimental technology, like ion thrusters or a spaceship’s aft pooping freaking nuclear explosions, it would require staggering amounts of fuel and mass to get to any nearby star. And worse: it will require decades—centuries, even—to get there. The trip will be meaningless for those left behind. Only the ones going forward in search for a new star system would enjoy the result of the colossal effort. It’s just not practical.

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