Atomic Test Effects in the Nevada Test Site Region Thirty-one atomic fission weapons, weapon prototypes, or experimental devices were fired in Nevada from January 1951 to January 1955. All were relatively small in explosive power. They ranged from less than one kiloton up to considerably less than 100 kilotons. (A kiloton is equal to 1,000 tons of TNT.) The forces released by test detonations in Nevada are very small compared to the tremendous forces released by the large fission and hydrogen weapons tested in the Pacific. Despite their relatively low yield, Nevada tests have clearly demonstrated their value to all national atomic weapons programs. Each Nevada test has successfully added to scientific knowledge needed for development and for use of atomic weapons, and needed to strengthen our defense against enemy weapons. Staging of some tests in Nevada, instead of carrying out all of them in the distant Pacific, also resulted in major savings in time, the most important factor, and in manpower, and money. Exposure to Flash The U.
Listen: Samuel L. Jackson narrates "Go the Fuck to Sleep" Author Adam Mansbach, after repeated struggles to get his two-year-old daughter to fall asleep, once sent out a jokey Facebook post reading: "Look out for my forthcoming children's book, 'Go the Fuck to Sleep.'" The one-liner amused many of his Facebook friends, and the next thing you know, Mansbach had assembled some verses, and bootleg PDF copies of the profanity-laced opus were suddenly going viral. The thirty-two-page Go the Fuck to Sleep was picked up by a small Brooklyn publishing house, and even reached number one on Amazon's bestseller list ahead of memoirs by Tina Fey and Steven Tyler, well before its official publication date, which was yesterday. So this children's book for adults is now a full-blown phenomenon, and has weathered a little controversy, as New Zealand Christian group Family First has lobbied New Zealand's booksellers not to sell the book. This all makes for an amusing story, but it gets better. None other than Pulp Fiction's Jules Winnfield himself, Samuel L.
A TED Talk by LearnVest: 5 Financial Rules to Live By Last week, LearnVest CEO and Founder Alexa von Tobel visited the New York Stock Exchange to deliver a TEDx speech about personal finance. She told the story of one (hypothetical) girl–and the five financial principles that will shape her life. Like most of us, “Jessica” never took a single personal finance class in college, or ever, for that matter. In fact, that’s part of what led Alexa to start LearnVest … Below Alexa shares five simple financial rules that can help us all get on track with our money, no matter where you’re starting out right now, or how much you learned (or didn’t) about money growing up. Picture this: It’s spring 2012 and Jessica, a smart 22-year-old, is graduating from college with an English degree. She has $25,000 in student loan debt and $4,000 in credit card debt that she amassed over the past few years. Jessica is ecstatic to have landed a great entry-level position at a publishing house. The same is true for the rest of us. 5 Key Financial Principles 1. 2. 3. 4.
Photo Tour of The Solar System (Part 1) If possible, the first images in each set will be true-color, as you would see them with your own eyes. Most images will either be true-color or monochrome (black and white), unless stated otherwise. Many images can be vastly enlarged by clicking on them and choosing a larger size from the Flickr page. It appears there's a limit to the size of diaries, so this first part of the tour ends about 3/4 of the way through the Saturn system (which is quite extensive). I. You might be tempted to think Mercury is very similar to the Moon, but compare and contrast them, and think about what the differences might mean. II. Through UV and orange filters: From the Soviet Venera 13 lander: From Venera 14: This is a perspective mosaic of Venera images put together by Don P. III. Can you spot Earth in this Voyager 2 image taken beyond Pluto? Luna IV. There are only two NEOs that have clear, interesting, photographic images at the moment. 25143 Itokawa 433 Eros V. Northern ice cap: Phobos Deimos VI. Dactyl Ceres Io
Hoverbike The Oh-My-God Particle by John Walker January 4, 1994 Fly's Eye The University of Utah operates a cosmic ray detector called the Fly's Eye II, situated at the Dugway Proving Ground about an hour's drive from Salt Lake City. The Fly's Eye consists of an array of telescopes which stare into the night sky and record the blue flashes which result when very high energy cosmic rays slam into the atmosphere. On the night of October 15, 1991, the Fly's Eye detected a proton with an energy of 3.2±0.9×1020 electron volts.[1,2] By comparison, the recently-canceled Superconducting Super Collider (SSC) would have accelerated protons to an energy of 20 TeV, or 2×1013 electron volts—ten million times less. All evidence points to these extremely high energy particles being protons—the nuclei of hydrogen atoms. Microbial Mass First of all, noting that mass and energy are equivalent, we can calculate the rest mass equivalent of a 3×1020 eV particle to be about 5×10−13 grams. How Fast? How fast was it going? Quicktime But How?
8-Bit vs. Reality:: Kidrobot's Blog, The KRonikle UK designer, Aled Lewis crosses the streams of reality and 8-bit with a fun new photographic series. Aled is best known for his clever t-shirt illustrations on Threadless, but his latest project superimposes your favorite pixelated video game characters of yesteryear with photographs of real life scenarios. via fubiz
Online | Reuben Margolin’s Kinetic Wave Sculptures Our Mechanics theme brought to mind San Francisco Bay Area kinetic sculptor Reuben Margolin, one of my all-time favorite artists. He makes mind-blowing, moving art based on tiny observations in nature. His collection of waves has the ability to quiet, soothe, and inspire awe in the viewer. Margolin combines math and simple materials (and insanely neat string and pulley systems) to recreate and amplify subtle effects that often go unnoticed in nature, like a tiny ripple or the movement of a caterpillar. Goli Mohammadi I’m senior editor at MAKE and have worked on MAKE magazine since the first issue. The maker movement provides me with endless inspiration, and I love shining light on the incredible makers in our community. Contact me at goli (at) makermedia (dot) com. Related
Alcubierre Warp Drive Time Travel An Alcubierre Warp Drive stretches spacetime in a wave causing the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The ship can ride the wave to accelerate to high speeds and time travel. The Alcubierre drive, also known as the Alcubierre metric or Warp Drive, is a mathematical model of a spacetime exhibiting features reminiscent of the fictional "warp drive" from Star Trek, which can travel "faster than light" (although not in a local sense - see below). The key characteristics of the application of Alcubierre warp drives for time control and time travel are presented in the picture below. Alcubierre Warp Drive Description In 1994, the Mexican physicist Miguel Alcubierre proposed a method of stretching space in a wave which would in theory cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. Alcubierre Metric The Alcubierre Metric defines the so-called warp drive spacetime. Mathematics of the Alcubierre drive
| Ink Butter™ | Tattoo Culture and Art Daily Geekologie - Gadgets, Gizmos, and Awesome Physics envy In science, the term physics envy is used to criticize a tendency (perceived or real) of softer sciences and liberal arts to try to obtain mathematical expressions of their fundamental concepts, as an attempt to move them closer to harder sciences, particularly physics. Evolutionary biologist Ernst Mayr discusses the issue of the inability to reduce biology to its mathematical basis in his book What Makes Biology Unique?. Noam Chomsky discusses the ability and desirability of reduction to its mathematical basis in his article "Mysteries of Nature: How Deeply Hidden. See also Notes Jump up ^ For example, Eugene Wigner remarked "The miracle of the appropriateness of the language of mathematics for the formulation of the laws of physics is a wonderful gift which we neither understand nor deserve References Chomsky, N. (2009). External links Overcoming ‘Physics Envy’, op-ed by two political scientists.