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11 Geeky Gifts 11 Geeky Gifts Science comes up with a lot of awesome stuff, and you don't need a Ph.D, a secret lab, or government funding to get your hands on some of the coolest discoveries. We've got a list of 11 mostly affordable gifts that are guaranteed to blow your mind, whether or not you're a science geek. Click on any image to see it enlarged. 1. Aerogel Also known as frozen smoke, Aerogel is the world's lowest density solid, clocking in at 96% air.
Photo: Youtube screen grab. See video below. Steel's Melting Point is Approx. 1,370 °C (2,500 °F) Melting steel in a solar oven (aka solar concentrator) isn't new or unique, but it's always cool to see and a good reminder of just how much energy is hitting the sunny side of the planet at any moment. Melting Steel w/ Solar Energy Melting Steel w/ Solar Energy
Working Towards Apotheosis Technological Singularity and Friendly Artificial Intelligence: Computer Programs, Minds-in-General (Artificial Intelligence), and the Human Brain At some point, brains made out of components besides biological neurons will exist. What will that mean? Will an intelligence that computes with silicon think at the same rate at one that computes with proteins? Working Towards Apotheosis
Physicists Slow Speed of Light Physicists Slow Speed of Light Physicists Slow Speed of Light By William J. Cromie Gazette Staff Light, which normally travels the 240,000 miles from the Moon to Earth in less than two seconds, has been slowed to the speed of a minivan in rush-hour traffic -- 38 miles an hour.
The irresistible force paradox, also called the unstoppable force paradox, is a classic paradox formulated as "What happens when an unstoppable force meets an immovable object?" This paradox is a form of the omnipotence paradox, which is a simple demonstration that challenges omnipotence: ("Can God create a stone so heavy that not even God is strong enough to lift it?"). The immovable object and the irresistible force are both implicitly assumed to be indestructible, or else the question would have a trivial resolution ("it destroys it"). Irresistible force paradox Irresistible force paradox
Read full article Continue reading page |1|2|3|4|5|6 Read more: 13 more things that don't make sense 13 Things That Do Not Make Sense 13 Things That Do Not Make Sense
First published Fri May 3, 2002; substantive revision Thu Jan 24, 2008 As the theory of the atom, quantum mechanics is perhaps the most successful theory in the history of science. It enables physicists, chemists, and technicians to calculate and predict the outcome of a vast number of experiments and to create new and advanced technology based on the insight into the behavior of atomic objects. But it is also a theory that challenges our imagination. Copenhagen Interpretation of Quantum Mechanics Copenhagen Interpretation of Quantum Mechanics
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7 Man-Made Substances 7 Man-Made Substances The universe is full of weird substances like liquid metal and whatever preservative keeps Larry King alive. But mankind isn't happy to accept the weirdness of nature when we can create our own abominations of science that, due to the miracle of technology, spit in nature's face and call it retarded. That's why we came up with... What do you get when you suspend nanoparticles of iron compounds in a colloidal solution of water, oil and a surfactant? Did you guess Zima?
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Teleportation Between Atoms Teleportation Between Atoms For the first time, scientists have successfully teleported information between two separate atoms in unconnected enclosures a meter apart – a significant milestone in the global quest for practical quantum information processing. Teleportation may be nature’s most mysterious form of transport: Quantum information, such as the spin of a particle or the polarization of a photon, is transferred from one place to another, but without traveling through any physical medium. It has previously been achieved between photons over very large distances, between photons and ensembles of atoms, and between two nearby atoms through the intermediary action of a third. None of those, however, provides a feasible means of holding and managing quantum information over long distances.
Photo by: Alexey Lemeshkov Ionization is the process in which one or more electrons are removed from an atom or molecule. The charged particle that results is called an ion. As an example, consider an atom of oxygen. An oxygen atom consists of a nucleus containing eight protons and eight neutrons. Each proton carries a single positive electrical charge, and each neutron is electrically neutral. Ionization Ionization
Based on the book The Demon Haunted World by Carl Sagan 2 Oct 11: Carl Sagan's books, including this one, are now available as ebooks from Kindle - but only for residents of the USA :( The following are suggested as tools for testing arguments and detecting fallacious or fraudulent arguments: Wherever possible there must be independent confirmation of the facts Encourage substantive debate on the evidence by knowledgeable proponents of all points of view. Arguments from authority carry little weight (in science there are no "authorities"). Balogna Detection Kit
Meaning of Halflife I'd like to illustrate what this really means. If living creatures had halflives the way radioactive atoms do, the world would be a very different place. What do you mean? Suppose there's an alien species with a halflife of, say, 70 years.
Classical physics could not explain the spectra of black bodies. It predicted that the intensity (power emitted at a given wavelength) of emitted light should increase rapidly with decreasing wavelength without limit (the "ultraviolet catastrophe"). In the figure below, the curve labeled "Rayleigh-Jeans law" shows the classically expected behavior. Quantum Physics
Nonmetal, mass: 1.008 u, 2 stable isotopes (1, 2), abundance rank (earth/space): 9/1 Click image to magnify. Vial of glowing ultrapure hydrogen, H2. Original size in cm: 1 x 5. How to make gases glow. Interactive Periodic Table
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