Picture from Hubbles Deep Field Project
The hubble space telescope glared at 1 spot in the sky continously for 50 days to produce this Amazing, and detailed, Picture!
Via That Science Guy
An air cannon using Pascals Law to turn a relatively low force into a high pressure point, forcing the air to rush through the small gap at high speed.
*note: there is no machinery invloved, all they are doing is hitting the drum on the back of the device.
Gif thanks to Hawaado, go check out his blog http://hawaado.tumblr.com/
The highest temperature produced in a laboratory was 920,000,000 F (511,000,000 C) at the Tokamak Fusion Test Reactor in Princeton, NJ, USA.
That is almost 1 million times the surface of the sun!!
Today, for the first time in human history, global CO2 levels have risen above 400 parts per million.
We can look at this day as a sad reminder of what we are doing to our planet - or we can look at it as the last push we need to enable the renewable energy revolution we need worldwide.
The Energy Revolution is not only possible - it’s already underway @ Greenpeace
The longest and brightest solar eclipse of the 21st century! Next one is not expected until 2132.
Photo credit: Miloslav Druckmüller, Peter Aniol, Vojtech Rušin, Ĺubomír Klocok, Karel Martišek, Martin Dietzel
Happy birthday, (May 11th) to my literal favorite person in the history of humans, Richard P. Feynman.
Via Raver Jesus
A tiny drop could have big implications for our understanding of particle collisions.Over the past few months, the Large Hadron Collider has been ramming protons and lead ions together in the Compact Muon Solenoid (CMS), one of its particle detectors. After each collision, some of the newly produced particles zoom away together like a school of fish, in a scientific puzzle called the “ridge effect,” rather than bouncing off in all directions.
The effect shown in the gif is called gravitational lensing.
What is gravitational lensing?
Gravitational lensing is the effect seen when an object behind a massive object is in the line of sight with the earth. For example:
Earth ————>Massive Object—————->Far away object
When we try looking at the far away object, the massive object bends space-time around it, causing the light rays from the far away object to travel in a curved path around into our line of sight.
As a result of this, we can often see the far away object magnified which helps astronomers understand the early universe. The gif shows a far away galaxy being gravitationally lensed by a closer black hole.
Today the science world is full of the word quantum - quantum physics, quantum optics, quantum chemistry, quantum gravity, quantum computer, quantum electronics, etc.. Its gotten to the point where it’s rather hard to find a scientific branch in which the word isn’t used!
But do you actually know what the word quantum means?
It’s actually quite simple to understand! Let’s start with it’s origin: it comes from the Latin word quantus which means how much. Pretty easy so far, right? If you need some help remembering, the word quantity comes from the same word!
Now here’s the explanation: Imagine cutting a loaf of bread in half. Then you cut it’s half in half. Then you cut it’s fourth in half, and so on, and so forth. Would you be able to continue on cutting it into smaller and smaller pieces forever? (We are using a very, very sharp and thin knife that can cut crumbs, our knife has no limitations in this scenario, it can cut anything we want it to.)
The obvious answer is no, you can’t, because that would mean our loaf of bread would be made out of an infinite amount of something. Your bread is finite, it has a specific mass, you can eat it all up! That means we can reach a limit - a certain “crumb” that is so small it can’t be divided anymore, and that all the other crumbs and halves and loaves are made up of it.
That “crumb” is called a quantum. A quantum is the smallest amount of physical quantity that can exist independently. Basically, it is the smallest unit, the one brick, the one LEGO out of which everything else is composed.
So quantum mechanics is the science of the mechanics of the smallest units of the universe, quantum optics is the field of research that deals with the smallest units of light, quantum tubes and dots are tubes and dots that are made out of the smallest units.
Obviously most of the fields of study that use quanta(the plural form of quantum) are very, very complicated and difficult to understand, and this post is in no way a reliable source of information on these subjects! If you truly wish to learn about them you should apply to a physics department of your university, as it take years of studying under proper professors to fully grasp any of the listed fields of research!
This post is just my attempt to enlighten the casual reader on what that fancy sounding word that everyone tacks on to normal words means. I hope I’ve succeeded in this, and cleared up some confusion!
P.S. Please note that this is applicable only to physical property! This is because physical property is actually made up of something physical - in math, on a purely theoretical plane, we can easily make up a number out of infinite parts:1=1/2+1/4+1/8+1/16+1/32…. This is because numbers are theoretical, and don’t exist in the real world! You can have one of something, you can write or draw or express the number one, but the actual number one doesn’t exsist! You won’t find it anywhere in the universe!
P.P.S. If you actually have a degree and/or know your way around the field of physics and my explanation sounds familiar - it should. Ancient Greek philosophers have formulated this explanation(minus the vocabulary) way waaaaaaay before me, and, unlike me, they did it based purely on logic, which is a lot more impressive.