Facebook Twitter

Beilstein Journal of Organic Chemistry - Latest Articles. LIQUID-FUEL ROCKET ENGINES. HOW to DESIGN, BUILD and TEST SMALL LIQUID-FUEL ROCKET ENGINES Reprinted with permission. ROCKETLAB cannot assume responsibility, in any manner whatsoever, for the use readers make of the information presented herein or the device resulting therefrom. MIT, LCS, and the volunteers who have made this information available on the W3 likewise disclaim all responibility for whatever use readers make of this information. This document is provided on a strictly informational basis. You can now download this entire book as a tarball (rocket.tar.gz) or as a zipfile ( Copyright 1967 by Leroy J. 35 Scientific Concepts That Will Help You Understand The World, by Aimee Groth. In order to sharpen our reasoning skills, we must have a good grasp of our own cognitive biases, as well as the basic laws of the universe.

35 Scientific Concepts That Will Help You Understand The World, by Aimee Groth

But in a dynamic world, new laws are constantly emerging. The editors over at asked some of the most influential thinkers in the world — including neuroscientists, physicists and mathematicians — what they believe are the most important scientific concepts of the modern era. The result is "This Will Make You Smarter: New Scientific Concepts To Improve Your Thinking," a compilation of nearly 200 essays exploring concepts such as the "shifting baseline syndrome" and a scientific view of "randomness. " We've highlighted 35 of the concepts here, crediting the author whose essay highlights the theory.

Cognitive humility Decades of cognitive research shows that "our minds are finite and far from noble. Cognitive load Our brains can only hold so much information at once. Constraint satisfaction Contingent superorganisms Copernican principle Cumulative error. Gates Puts Feynman Lectures Online. MicrosoftThe new Tuva Web site features annotated videos of Richard Feynman’s physics lectures.

Gates Puts Feynman Lectures Online

Microsoft Chairman Bill Gates believes that if he had been able to watch physicist Richard Feynman lecture on physics in 1964 his life might have played out differently. Mr. Gates, of course, is legendary as a Harvard University dropout who went on to create the world’s most successful software firm. He has told associates that if had watched the lectures earlier in his life he might have become a physicist instead of a software entrepreneur. However, Mr. Microsoft Research announced on Wednesday that Mr.

The name “Tuva” was chosen in reference to Dr. Mr. “I do think that making science cool to people when they’re young and therefore getting more people to go into it in an in-depth way, I think that’s very important right now,” Mr. The Tuva Web site will be expanded with additional Feynman lectures in the future, Mr. Mr. “I couldn’t help myself, I watched them one more time,” he said. Tongue controller for the paralyzed offers greater independence. 25 Documentaries Everybody Should Watch. Sans Soleil This is not your average documentary.

25 Documentaries Everybody Should Watch

It is a fleeting memory, a sudden remembrance of times long past, a meditation on time and culture, a touch of an emotional diary. We follow the eyes of a world traveller who makes sharp observations and tries to convey them to his friend. We never learn who they are and where they came from, and this is perhaps a subtle point the documentary wants to make. The narrator’s voice switches from Japanese to German to English to French, thereby embodying the language of the places visited.

The Corporation Corporate personhood is probably the elephant in the room when it comes politics. Watch The Corporation for FREE on Amazon Instant Video Cosmos: A Personal Voyage This list wouldn’t be complete without the documentary Cosmos. The Union: The Business Behind Getting High This is a must watch for everyone. Watch The Union on YouTube. The Century of the Self If I have to recommend one documentary to anyone, this is it. Life in a Day Food Inc. Inside LSD. Must Watch: An Out-of-Character Stephen Colbert Interviews Neil deGrasse Tyson.

While I believe in God, I do not ignore the value and contribution that science makes.

Must Watch: An Out-of-Character Stephen Colbert Interviews Neil deGrasse Tyson

People often confuse the two as separate and nothing could be further from the truth. Having said that, the question of morality, and the Tree of Knowledge of Good and Evil are exactly the lesson that God was teaching. Tyson eluded that we need better moral management, while God on the other hand was warning us that we do not have the capacity to do so on our own. This tree did no way mean moral ability and insight! If so, Adam and Eve wouldn´t even KNOW it was wrong to eat, thus God wouldn´t have punished them. This tree means the supremacy TO DEFINE "right" and "wrong"! God told Adam not to eat, so he defined it as "wrong". By eating nevertheless Adam overruled God´s decision, making it for himself "right" to eat.

God has created us with a free will and intelligence, but not with the ability to define right and wrong independently from him. Encyclopedia of Life - Animals - Plants - Pictures & Information. Kickstarter. Phonebloks: a utopian world where smartphones are a bit more like Lego. We hate to open too negatively here, but let's just say that this seems like one of those ideas that's just too good to be true.

Phonebloks: a utopian world where smartphones are a bit more like Lego

But heck, much stranger things have happened in the world of consumer electronics, and certainly the maker and crowdfunding communities have gone a ways toward helping us rethink our devices. What about a smartphone that could score a 10 every time iFixit teared it down? A simple, modular handset that you could configure and reconfigure it to your heart's content and upgrade simply instead of throwing it all away?

Phoneblok is still firmly in the chipper YouTube video concept phase, but its creators are hoping that, with enough social push at the same time, the company will be able to attract some big names to its big idea. Crazy? Comments. Phonebloks: a utopian world where smartphones are a bit more like Lego. See What Happens When a Squid Listens to Cypress Hill. Ever wonder what a squid listening to Cypress Hill’s Insane in the Brain looks like?

See What Happens When a Squid Listens to Cypress Hill

Fascinated by the fast color-changing nature of the squid’s skin and their ability to quickly control pigmented cells called chromatophores, the folks at Backyard Brains wondered what exactly would happen if they played music to a squid. In order to satisfy their curiosity they attached a suction electrode to the squid’s fin nerve and then connected the electrode to an iPod nano as their stimulator. The results are incredible. I’m not going to attempt to explain to you how this works, but you can see an in-depth explanation on TED.

For now, watch the video below and be amazed. Share With Your Friends. Scientists engineer suicide bomber bacteria to kill other bacteria. In a lab in Singapore, scientists are designing and breeding suicide bombers.

Scientists engineer suicide bomber bacteria to kill other bacteria

If their efforts pan out, they will be applauded rather than jailed, for their targets are neither humans nor buildings. They’re bacteria. Nazanin Saeidi and Choon Kit Wong have found a new way of killing Pseudomonas aeruginosa, an opportunistic species that thrives wherever humans are weak. It commonly infects hospital patients whose immune systems have taken a hit. It targets any tissue it can get a foothold on – lungs, bladders, guts – and it often causes fatal infections. Their E.coli recruits produce a protein called LasR, which recognises molecules that P.aeruginosa cells use to communicate with one another. The beauty of this solution is that it uses P.aeurginosa’s own weapons against it. In preliminary lab tests, the E.coli bombers proved to be remarkably effective against P.aeruginosa.

Of course, Saeidi and Wong’s method is a long way from actual clinical use. The Effects of Marijuana on Consciousness. From: Altered States of Consciousness, edited by Charles T.

The Effects of Marijuana on Consciousness

Tart, Doubleday & Co., 1972, Chapter 22 A marijuana high usually lasts two or three hours, during which a wide range of effects may occur, varying both in intensity and quality. The usual, most noticeable effect is intensification of sensation and increased clarity of perception. Visually, colors are brighter, scenes have more depth, patterns are more evident, and figure-ground relations both more distinct and more easily reversible. Other sense modalities do not have the variety of visual stimuli, but all seem to be intensified. Skin receptors are also effected. Awareness of proprioceptive responses is enhanced. Such effects vary with the individual and the situation. The person himself is the most important determinant of how the enhancement will appear. Another factor which affects the response is that persons unfamiliar with the marijuana state frequently must "learn" that they are perceiving experience in a different way. : Hacking into the Human. Untitled. Learn to Pick Locks for Fun and an Increased Understanding of Security. You can pick up a decent lockpick set at some locksmiths.

Learn to Pick Locks for Fun and an Increased Understanding of Security

They'll have you sign off a paper saying it is criminal to carry the lockpick set unless you have a locksmith license and all that fun stuff. I have one, but I always find myself needing to use makeshift tools since I don't carry it on me.The best things I've used are a binder clip and some small paper clips. I take a handle off of the binder clip and use that as the pulling/rotating hook.

Large ones are easier to work with, but they don't always fit in the lock, so get some small ones. For poking at the tumblers, I take a small paperclip and fold it tightly with pliers to give it strength. Using those 2 things, you can pick a huge majority of home locks. Flagged @xternai: Huge majority of home locks? Most video and instructions on lock picking seem to deal with at most 5 pins, as if you'd ever encounter that as a home lock...

If I did come across a 2x7, I doubt I'd do very well. I'm surprised though to hear about 5 pin home locks. New Model of the Universe Says Past Crystallizes out of the Future. What’s the difference between the past and the future?

New Model of the Universe Says Past Crystallizes out of the Future

Not a great deal, if you take a purely relativistic view of the universe, say George Ellis from the University of Cape Town in South Africa and Tony Rothman from Princeton University in New Jersey. The standard spacetime diagrams used in relativity accord no special status to the past, the present or the future. That’s because they assume that everything evolves from time-reversible local physics. In fact, it is possible represent such a universe using a kind of spacetime diagram in which space and time merge into a single entity. “The universe just is: a fixed spacetime block,”say Ellis and Rothman. This kind of “block universe” has indeed been studied by various physicists in recent decades with limited impact.

Today, Ellis and Rothman introduce a significant new type of block universe. What’s interesting is that the transition between these states takes place largely in the present. Murphy. Murphy's Law Calculator. Murphy's Law Calculator From a formula for * Sod's Law provided by British Gas: ((U+C+I) x (10-S))/20 x A x 1/(1-sin(F/10)) "anything that can go wrong, will go wrong! " Find out in advance whether you will be able to successfully repair your VCR, get to a meeting on time, impress your date, or be a success at any activity whatsoever ! Score: 4.355 Risk Factor: 35286.9 You have a 43% chance of screwing this up ! You can minimize your risk by having a backup plan (redundant circuitry, alternate route etc.) British Gas commissioned Dr David Lewis, a chartered psychologist; Dr Keylan Leyser, an economist and business consultant; and Philip Obadya, a mathematician, to devise the formula. Murphy's Law Links: Note: Murphy's Law has long been known in the UK as "Sod's Law".

Casebook: Jack the Ripper - Main. Science news and science jobs from New Scientist. How to Forecast Weather. Ever wondered how to forecast the weather without actually using instruments? Check the Clouds: Clouds can tell us a lot about the weather. For example, they can tell us if it’s going to be warmer on a particular night by simply being there. That’s because they prevent heat radiation from escaping.

They can also tell you whether there will be rain and whether there will be bad weather in general (when you see clouds moving in opposite directions of each other). Check the Humidity: If you’re one of those people whose hair gets all curly when it gets really humid out, you know exactly what this is about. Check the Animals: Birds only fly in the sky when they expect fair weather ahead. Look at the Rainbow (but only in the west) and look for a Red Sky: If you see one in the west, it means a major storm front is coming.

Check the Air: If it smells like a compost heap, expect some rain soon. Check the Moon: Seen any red moons lately? Check the Wind: A Few More Ideas: ScienceWorld. Some paradoxes - an anthology. Greatest Hits of TED Videos. Hack Your Own Super Fridge. How to turn "water" into marbles. Stolen Camera Finder - find your photos, find your camera. Make your own Airsoft machine gun with a soda bottle. Would you like to own an Airsoft gun, but can’t afford to buy one? How about making one instead using a soda bottle? Better yet, how about making a machine gun that only requires 4 cheap and commonly available parts that’s capable of firing hundreds Airsoft BBs before a reload is required? The informative video below shows you exactly how to do that for around $15.

The parts you’ll need include a plastic soda bottle, a quick release air compressor adaptor, an air compressor blowgun, and a 7mm by 6-inch brake line. The other thing you will need is a compressed air supply. The instructions make this look simple to do. Any concerns over the pressure inside the bottle are laid to rest in the comments on the YouTube video. It goes without saying you should wear protective gear while using this gun, and never point it at another individual, or pet for that matter. Plastic-eating fungus could help deal with landfill. A team from Yale University has discovered a fungus deep in the South American rainforest that can live entirely on plastic - offering hope for new methods of waste disposal.

Pestalotiopsis microspora, found in the jungles of Ecuador, can digest polyurethane - which often currently ends up in landfill and takes generations to decay. Burning polyurethane releases toxins as well as carbon dioxide; and, while it can be recycled, it frequently isn't. The fungus can live entirely on polyurethane. And, most intriguingly, the fungus can break down polyeurethane even without the presence of oxygen, meaning it could do its trick even at the bottom of a landfill site. The fungus was discovered on the university's annual Rainforest Expedition last year. Jonathan Russell has isolated the enzyme that the fungus uses to degrade the polyeurethane, a serine hydrolase. Fracture Putty can heal a broken bone in days. Scirus - for scientific information. Psilocybin, the Drug in 'Magic Mushrooms,' Lifts Mood and Increases Compassion Over the Long Term. Professor of Theoretical Physics, CUNY. Most Popular Repurposing Tricks of 2011.

Top Sites To Find All The Serials You Need. Forked from: [BetweenAS3]uzumaki. 10 Search Engines to Explore the Invisible Web. 5 Ways To Hack Your Brain Into Awesomeness. #3038363. Kurzweil Accelerating Intelligence.