The truth behind Lenin’s Testament
George R.R. Martin can’t tweet because he’s killed off all 140 characters
this makes me glad that i posted that on a sideblog
Grand Prismatic Spring
Located in Yellowstone National Park, Wyoming, the Grand Prismatic Spring is the largest natural hot spring found in the US. The spring has a scalding temperature of 160 °F (70 °C), a total depth of 160 feet and a diameter of 300 feet. The vivid, rainbow colors in the spring are the result of pigmented bacteria in the microbial mats that grow around the edges of the mineral-rich water.
Such a fantastic resource!!
WOW. These are not crappy diagrams. This is good reference.
Black hole consumes a star
If you aren’t fascinated by astronomy you’re wrong.
I think it should be added that those jets are pure energy being spewed out by the black hole. There is just so much energy and mass going into the black hole at one time that it overloads and shoots out for lightyears into space.
I have no idea why I thought this was about Beyonce. I swear, I get a little sick, and my brain immediately goes into chaos mode.
the black hole wanted a ring, so he took a star to make it gold
Languages ranked from easiest to hardest for English speakers - Infographic found here.
they’re all hard lol :(
Me and trying to learn how to read/write Chinese is like me running into a brick wall
Also where is German
I feel like German should be med-easy
No seriously where the fuck is german
trying to learn all the particles and grammar and HOMONYMS for Japanese is the hardest shit I’ve ever done
GET IN EVERYONE
THIS IS GOING TO BE A ROUGH RIDE
I’m delighted to announce that we’ve reached an agreement to acquire Tumblr!
We promise not to screw it up. Tumblr is incredibly special and has a great thing going. We will operate Tumblr independently. David Karp will remain CEO. The product roadmap, their team, their wit and irreverence will all remain the same as will their mission to empower creators to make their best work and get it in front of the audience they deserve. Yahoo! will help Tumblr get even better, faster.
Tumblr has built an amazing place to follow the world’s creators. From art to architecture, fashion to food, Tumblr hosts 105 million different blogs. With more than 300 million monthly unique visitors and 120,000 signups every day, Tumblr is one of thefastest-growing media networks in the world. Tumblr sees 900 posts per second (!) and 24 billion minutes spent onsite each month. On mobile, more than half of Tumblr’s users are using the mobile app, and those users do an average of 7 sessions per day. Tumblr’s tremendous popularity and engagement among creators, curators and audiences of all ages brings a significant new community of users to the Yahoo! network. The combination of Tumblr+Yahoo! could grow Yahoo!’s audience by 50% to more than a billion monthly visitors, and could grow traffic by approximately 20%.
In terms of working together, Tumblr can deploy Yahoo!’s personalization technology and search infrastructure to help its users discover creators, bloggers, and content they’ll love. In turn, Tumblr brings 50 billion blog posts (and 75 million more arriving each day) to Yahoo!’s media network and search experiences. The two companies will also work together to create advertising opportunities that are seamless and enhance user experience.
As I’ve said before, companies are all about people. Getting to know the Tumblr team has been really amazing. I’ve long held the view that in all things art and design, you can feel the spirit and demeanor of those who create them. That’s why it was no surprise to me that David Karp is one of the nicest, most empathetic people I’ve ever met. He’s also one of the most perceptive, capable entrepreneurs I’ve worked with. His respect for Tumblr’s community of creators is awesome, and I’m absolutely delighted to have him and his entire team join Yahoo!.
Both Tumblr and Yahoo! share a vision to make the Internet the ultimate creative canvas by focusing on users, design — and building experiences that delight and inspire the world every day.
Because if I see one more stupid post on how Yahoo is going to fuck up tumblr by being ‘family friendly’ or for any other bullshit reason, I’m going to fucking scream.
The 4th dimension in our case is where the 3D structures including this very Universe combine and exist within changing time frames. 4D structures can’t exist within 3D ones but 3D structures can exist in a 4D just like your drawings exist within that flat paper as lines and points but couldn’t exist in our 3D world by itself. Extra dimensions work the same, like a Matryoshka doll that loses and or gains properties the further you go.
Image: 3D projection of a tesseract undergoing a simple rotation in four dimensional space.
In mathematical physics, Minkowski space or Minkowski spacetime (named after the mathematician Hermann Minkowski) is the mathematical space setting in which Einstein’s theory of special relativity is most conveniently formulated. In this setting the three ordinary dimensions of space are combined with a single dimension of time to form a four-dimensional manifold for representing a spacetime. [**]
In physics, spacetime (also space–time, space time or space–time continuum) is any mathematical model that combines space and time into a single continuum. Spacetime is usually interpreted with space as existing in three dimensions and time playing the role of a fourth dimension that is of a different sort from the spatial dimensions. From a Euclidean space perspective, the universe has three dimensions of space and one of time. By combining space and time into a single manifold, physicists have significantly simplified a large number of physical theories, as well as described in a more uniform way the workings of the universe at both the supergalactic and subatomic levels. [**]
But my favorite explanation of extra dimensions in general is Carl Sagan’s version. His version was based on Flatland: A Romance of Many Dimensions which is an 1884 satirical short story by Edwin Abbott Abbott:
The story is about a two-dimensional world referred to as Flatland which is occupied by geometric figures. Women are simple line-segments, while men are polygons with various numbers of sides. The narrator is a humble square, a member of the social caste of gentlemen and professionals in a society of geometric figures, who guides us through some of the implications of life in two dimensions. The Square has a dream about a visit to a one-dimensional world (Lineland) which is inhabited by “lustrous points”.
He attempts to convince the realm’s ignorant monarch of a second dimension but finds that it is essentially impossible to make him see outside of his eternally straight line.
He is then visited by a three-dimensional sphere, which he cannot comprehend until he sees Spaceland for himself. This Sphere (who remains nameless, like all characters in the novella) visits Flatland at the turn of each millennium to introduce a new apostle to the idea of a third dimension in the hopes of eventually educating the population of Flatland of the existence of Spaceland. From the safety of Spaceland, they are able to observe the leaders of Flatland secretly acknowledging the existence of the sphere and prescribing the silencing of anyone found preaching the truth of Spaceland and the third dimension. After this proclamation is made, many witnesses are massacred or imprisoned (according to caste).
After the Square’s mind is opened to new dimensions, he tries to convince the Sphere of the theoretical possibility of the existence of a fourth (and fifth, and sixth …) spatial dimension.
The depiction above is a 4 dimensional figure as represented by 3 dimensional cubes within cubes to visualize how 4th dimensions may work.
Related: Carl Sagan explains extra dimensions
If crying over fictional characters burned calories man this site would be so fit
NYC as seen from different planets
Take a trip around the solar system and bring the entire city of New York with you in these captivating drawings showing how the atmospheres of other planets would interact with the iconic metropolitan skyline.
The images were created by artist Nickolay Lamm of StorageFront.com, who employed the help of astrobiologist Marilyn Browning Vogel to get the details right. Lamm said the idea came to him while looking at pictures that NASA’s Curiosity rover took of Mount Sharp.
Image credit: Nickolay Lamm
the things we learn from tumblr.
Yes and no. You’re about to learn something else.
Who ever made this does not know about elevator mechanics. For one thing, it is impossible to say one thing will work for every elevator given that the mechanisms used for elevators have changed over the years and not all elevators are made by the same company.
This is also makes the assumption that the “door close” button is not a placebo button (a button that does literally nothing). As admin user snopes of snopes.com on the snopes forum pointed out in reference to the legitimacy of this claim:
the “close door” button is an artifact of the switch from elevators with manually-operated gates/doors to ones with electronically-operated doors (and from attendant-operated elevators to passenger-operated ones). The modern sensors/timers that automatically regulate the opening and closing of elevator doors came later.
But as to weather or not the “close door” button is a placebo button is really dependent on the elevator. Elevator mechanic Cecil of Straightdope.com points out, many elevators Close Door buttons function as a signal to speed up a time delay. If an elevator is set to close its doors after 5 seconds, pressing the button would send a signal to lower the time the door is to remain open from 5 seconds down to 2. In that situation, unless holding down the button is programmed to send the message of “don’t stop” how long you press the button is irrelevant, the door will still close after 2 seconds.
As someone else pointed out in a different snopes thread in which this exact picture was of the topic,
The door close button does one thing. The doors are held open and are timed to stay open for a certain length of time, which is adjustable. To get the doors to close before that period of time, you push the door close button and a capacitor is discharged, therefore cutting down the time that is stored in that capacitor. After that, the door close button will not help to by-pass other floors.
Elevator lads have a “in service” key that, that when used in the “service” key switch, will by-pass hall and car calls. Sometimes you will see a key switch “Ind. Service”. That is Independent Service. Same thing. Sometimes the building manager will let a moving company use that feature. When used, the car will come to the designated floor, doors open and it will sit there with the doors open. Movers like that. Then, when you want to run the car, you put in your floor call and hold that button until the doors close and the car moves. In some cases you may have to hold the Door Close button to get going.
It is possible that in elevators that have an Independent Service function it works, which would explain how police and others would use it. But unless you have a key, it probably wouldn’t work.
TL;DR: Don’t believe everything you read on tumblr.