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The subject matter of the comic varies from statements on life and love to mathematical , programming , and scientific in-jokes. Some strips feature simple humor or pop-culture references. It has a cast of stick figures , [3] [4] and the comic occasionally features landscapes, graphs, charts , and intricate mathematical patterns such as fractals. Munroe has released five spinoff books from the comic. The first book, published in and entitled xkcd: volume 0 , was a series of select comics from his website.

Xkcd.com

In popular music, a supergroup is a musical group formed by collaboration of existing solo artists and members of other musical groups. This comic shows a marquee announcing a concert by a supergroup formed from members of 10 musical groups whose names all begin with a number. The name of the supergroup is the sum of all those numbers, , followed by the names of the original groups without their numbers. It's reasonable to estimate that there could be up to 32 members of the supergroup see below. The title text indicates that this supergroup performs a medley or mashup of songs whose titles begin with numbers. The title of this "supersong" is similarly formed by adding the numbers and following with the rest of all the titles. Notably, none of the referenced songs were written by any of the referenced artists. There are two more songs titled or known as " Miles" , by Hedy West and Tori Amos, which could be added up to replace "A Thousand Miles" or " Miles" in the tally as well. These counts mostly reflect the bands' most well-known lineups and may vary with time due to changes in membership or the band's status. On the other hand, especially for worthy causes , it is possible that groups with many changing lineups could perhaps rustle up far more members than they ever had at a given time, never mind any prominent artists who may guest-star in their own right. It is unclear whether the band names would be pro rated in these circumstances for example, if only one of gecs joined the supergroup, would they only count for 50? Randall may be making a subtle reference to mathematical physics, in which a supergroup is a generalization of a group based on the concept of supersymmetry. Readers with a background in mathematics or physics might find their expectations thwarted upon realizing that the comic is about mundane musical collaborations. But then, "every supergroup carries a natural group structure, but there may be more than one way to structure a given group as a supergroup" [1] , which applies to both contexts. Isn't the sum in the title text wrong?

If the moon somehow were put in orbit around the Earth at a xkcd.com of 6 feet, xkcd.com, the only difference is that debris would crash into you from the side at a faster velocity. Viacom International Inc. Archived from the original on March 1, xkcd.com,

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The seventh What If? Would it negate the need for a heat shield? Is it possible for a spacecraft to control its reentry in such a way that it avoids the atmospheric compression and thus would not require the expensive and relatively fragile heat shield on the outside? Could a small rocket with payload be lifted to a high point in the atmosphere where it would only need a small rocket to get to escape velocity? The answers to these questions all hinge on the same idea. It's an idea I've touched on in other articles, but today I want to focus on it specifically:. Space is about kilometers away. That's far away—I wouldn't want to climb a ladder to get there—but it isn't that far away. Getting to space [1] Specifically, low Earth orbit, which is where the International Space Station is and where the shuttles could go.

Xkcd.com

The seventh What If? No matter how fast you push something, it will never quite get up to light speed. Our universe has some weird rules. But the closer something gets to the speed of light, the more energy and momentum it has—and this energy and momentum go up without limit. As it falls, it compresses the air in front of it.

Festival rave wear

Views Read View source View history. Science fiction movies have frequently depicted this method of landing, either before the dawn of the actual Apollo program or to save plot-time or by using a fictional increase in rocket capability in more futuristic settings. Retrieved May 10, Archived from the original on December 18, Archived from the original on September 22, Contents move to sidebar hide. Retrieved May 8, Retrieved March 3, The inefficiency comes in taking a comparatively huge rocket down to the Moon and back up, requiring a lot more fuel than a separate lander. In the comic " Election Map", colored stick figures are used to display how people voted according to their region giving a clearer picture of how people voted in the election, which was praised as being a strong visualization tool for the election outcome. Archived from the original on May 17, The Telegraph. Munroe has been a fan of newspaper comic strips since childhood, describing xkcd as an "heir" to Charles M. On February 5, , Munroe announced a fourth book, titled How To , which uses math and science to find the worst possible solutions to everyday problems.

The seventh What If? There are a lot of problems with the concept of a single random soul mate. But of the 9.

Status: Rejected because, humorously, "I guess no one thought of it?! Six months after release, the book had sold over 25, copies. Machines of Death LLC. Archived from the original on September 3, Archived from the original on February 27, The Guardian. The Whit Online. This would be also bad for the Earth's climate, tides, stock markets and ecosystems. Notably, none of the referenced songs were written by any of the referenced artists. Retrieved October 19, SOUPS ' Archived from the original on March 25,