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FInd Your Dream Job With MahaJob.org

noreply@blogger.com (Anonymous) — Sun, 25 Aug 2013 21:21:00 -0700

Follow my blog with Bloglovin

noreply@blogger.com (Anonymous) — Wed, 19 Jun 2013 23:33:00 -0700

NASA's Next 3D Printing Frontier Is... Pizza?

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:26:00 -0700

NASA is funding research into 3D-printed food. Mechanical engineer Anjan Contractor received a $125,000 grant from the agency to build a prototype 3D printer with the aim of automating food creation. It's hoped the system could provide astronauts food during long-distance space travel, but its creator has the loftier aim of solving the increasing food shortages around the world by cutting down on waste. The software for the printer will be open-source, while the hardware is based on the open-source RepRap Mendel 3D printer.

The concept is to use basic "building blocks" of food in replaceable powder cartridges. By combining each block, a wide range of foods should be able to be created by the printer. The cartridges will have a lifespan of 30 years, more than long enough to enable long-distance space travel. After proving his system works on a basic level by printing chocolate, Contractor will start his project within the next few weeks by attempting to print a pizza.

As Quartz reveals, the pizza printer will first print a layer of dough, which will be cooked while being printed, before mixing tomato powder with water and oil to print a tomato sauce. The topping for the pizza will be a nondescript "protein layer." It's early days for the project, but if it's successful it would be a real milestone on the way towards a Star Trek-style Replicator.

Beware Of Sudden Gusts Of Gravity

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:21:00 -0700

Nature

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:18:00 -0700

Nature not only looks beautiful, it can appear to imitate other things in nature. These two species of monkey orchids are called the Dracula simia (monkey faces) and Orchis simia (dancing men).

You May Take Notes

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:17:00 -0700

Summary Of Organic Chemistry

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:14:00 -0700

Fun Fact

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:12:00 -0700

The Art of Positive Skepticism: Skeptic vs Cynic

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:09:00 -0700

In the late 1500’s, everyone believed Aristotle’s claim that heavy objects fell faster than light ones. That is, everyone except Galileo. To test Aristotle’s claim, Galileo dropped two balls of differing weights from the Leaning Tower of Pisa. And guess what? They both hit the ground at the same time! For challenging Aristotle’s authority, Galileo was fired from his job. But for his place in history, he showed us that testing human claims should be the mediator of all truth.

It’s easy to confuse being a skeptic with being a cynic. So let’s define the terms.

A cynic distrusts most information they see or hear, particularly when it challenges their own belief system. Most often, cynics hold views that cannot be changed by contrary evidence. Thus, they often become intolerant of other people’s ideas. It’s not difficult to find cynics everywhere in our society, from the halls of Congress to our own family dinner tables.

Skepticism, on the other hand, is a key part of critical thinking – a goal of education. The term skeptic is derived from the Greek skeptikos, meaning “to inquire” or “look around.” Skeptics requires additional evidence before accepting someone’s claims as true. They are willing to challenge the status quo with open-minded, deep questioning of authority.

Proven Fact

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:07:00 -0700

Immortal Cells

noreply@blogger.com (Anonymous) — Tue, 18 Jun 2013 06:03:00 -0700

The woman was Henrietta Lacks and her immortal cells have been essential in curing polio; gene mapping; learning how cells work; developing drugs to treat cancer, herpes, leukemia, influenza, hemophilia, Parkinson’s disease, AIDS… The list goes on and on and on. If it deals with the human body and has been studied by scientists, odds are, they needed and used Henrietta’s immortal cells somewhere along the way. Her cells were even sent up to space on an unmanned satellite to determine whether or not human tissue could survive in zero gravity.

Visible Charging current

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:24:00 -0700

Visible Charging current, so you know when to unplug and stay green/save power

Supercell Thunderstorm Over Ancona, Italy

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:19:00 -0700

Supercell Thunderstorm Over Ancona, Italy - photo by Alessandro Serresi

Say hello to the strawberry poison dart frog!

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:18:00 -0700

The strawberry frogs choose their mates quite differently to us. Females don't pick males because they're intelligent, physically fit, or genetically superior. They pick them because... they're closer!

But why!?

Turns out all strawberry frogs have brilliant genes & therefore, female frogs aren't fussy.

Medical implants

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:17:00 -0700

Medical implants, such as stents and catheters, bring a risk of infection. Specifically, their smooth surfaces encourage the growth of bacterial films. The trick is to stop these films forming in the first place. Marek Urban at Clemson University in South Carolina thinks he may have a way of doing so

Using Cornstarch to mine Gold

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:16:00 -0700

Northwestern University scientists have struck gold in the laboratory. They have discovered an inexpensive and environmentally benign method that uses simple cornstarch—instead of cyanide—to isolate gold from raw materials in a selective manner. _

This green method extracts gold from crude sources and leaves behind other metals that are often found mixed together with the crude gold. The new process also can be used to extract gold from consumer electronic waste.

Current methods for gold recovery involve the use of highly poisonous cyanides, often leading to contamination of the environment. Nearly all gold-mining companies use this toxic gold leaching process to sequester the precious metal.

He found that it was alpha-cyclodextrin, a cyclic starch fragment composed of six glucose units, that isolates gold best of all. The Northwestern procedure is also more efficient than current commercial processes.

Microscopic crystal 'flowers' build themselves in a Harvard lab

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:15:00 -0700

Imagine peering into a microscope and finding yourself in a garden.
That's the case at Harvard School of Engineering and Applied Sciences, where researchers have found a way to shape microscopic crystals into complex and often beautiful structures.
Inspired by coral reefs, seashells and other naturally occurring complex mineral structures, postdoctoral fellow Wim L. Noorduin and Harvard colleagues have been researching ways to create similar designs.
These "flowers" were created by mixing barium chloride and sodium silicate, also known as waterglass, in a beaker of water. The resulting reaction combines with carbon dioxide in the air to create crystals made of barium carbonate in the water.
Noorduin found that as the crystals self-assembled, he could control their shape, size and direction of growth by altering the temperature, the amount of carbon dioxide allowed into the reaction and the acidity of the water.
Increasing the carbon dioxide levels creates the broad, flat leaves of those mineral flowers, for example. Fluctuating the acidity level creates the ruffled wave in the petals.

GALLIUM IS A METAL THAT CAN MELT IN YOUR HAND

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:13:00 -0700

Gallium has a melting point of temperature of 29.76 °C, which is slightly above room temperature. If you hold it in your hand long enough, it will start to melt

Some more mind blowing facts about Gallium:
➜ Mendeléev predicted and described this element, and called it ekaaluminum
➜ Gallium has one of the longest liquid ranges of any metal and has a low vapor pressure even at high temperatures
➜ You can buy a gram of gallium for only three dollars. What a bargain!

FUN FACT

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:12:00 -0700

Mitsuyuki Ikeda, a researcher from the Okayama Laboratory, has developed steaks based on proteins from human excrement. Tokyo Sewage approached the scientist because of an overabundance of sewage mud. They asked him to explore the possible uses of the sewage and Ikeda found that the mud contained a great deal of protein because of all the bacteria.

The researchers then extracted those proteins, combined them with a reaction enhancer and put it in an exploder which created the artificial steak. The “meat” is 63% proteins, 25% carbohydrates, 3% lipids and 9% minerals. The researchers color the poop meat red with food coloring and enhance the flavor with soy protein. Initial tests have people saying it even tastes like beef.

Inhabitat notes that “the meatpacking industry causes 18 percent of our greenhouse gas emissions, mostly due to the release of methane from animals.” Livestock also consume huge amounts of resources and space in efforts to feed ourselves as well as the controversy over cruelty to animals. Ikeda’s recycled poop burger would reduce waste and emissions, not to mention obliterating Dante’s circle for gluttons.

The scientists hope to price it the same as actual meat, but at the moment the excrement steaks are ten to twenty times the price they should be thanks to the cost of research. Professor Ikeda understands the psychological barriers that need to be surmounted knowing that your food is made from human feces. They hope that once the research is complete, people will be able to overlook that ugly detail in favor of perks like environmental responsibility, cost and the fact that the meat will have fewer calories.

JOKE ABOUT SODIUM AND HYDROGEN

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:10:00 -0700

On May 31st,a gigantic Asteroid is going to pass by Earth

noreply@blogger.com (Anonymous) — Sat, 25 May 2013 20:07:00 -0700

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noreply@blogger.com (Anonymous) — Fri, 24 May 2013 05:53:00 -0700

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Cute picture

noreply@blogger.com (Anonymous) — Fri, 24 May 2013 05:03:00 -0700

Zeta Ophiuchi - A Runaway Star

noreply@blogger.com (Anonymous) — Tue, 21 May 2013 02:58:00 -0700

This infrared image taken by NASA's WISE telescope shows a runaway star called Zeta Ophiuchi (the blue star near the center of this image). As this star zooms through space at a speed of 15 miles per second (24 kilometers per second), it creates a bright shockwave (yellow arc) in an interstellar cloud of dust and gas. The blue and cyan colored dots represent stars, and the green and red colors represent interstellar dust.

Zeta Ophiuchi is a hot, blue supergiant star located about 366 light-years away in the direction of the Ophiuchus constellation. It is is about 20 times more massive and 65,000 times more luminous than the Sun. If it weren't surrounded by so much dust, it would have been one of the brightest stars in the sky.

Astronomers theorize that Zeta Ophiuchi was once part of a binary star system with an even more massive partner. The partner exploded as a supernova, blasting away most of its mass, and Zeta Ophiuchi was suddenly freed from its partner's pull. This made the star shoot away like a bullet through space. Due to a combination of this high proper motion, high intrinsic brightness, and its current location in a dust-rich area of the galaxy, the star is creating a bow-shock in the direction of motion (as can be seen from the lower right corner towards the upper left corner of the image).

Zeta is already about halfway through its very short lifespan of 8 million years. It will ultimately die in a massive explosion called a supernova.

Image credit: NASA/JPL-Caltech/UCLA

false-color image from NASA

noreply@blogger.com (Anonymous) — Tue, 21 May 2013 02:56:00 -0700

This spectacular, false-color image from NASA's Cassini mission highlights the storms at Saturn's north pole. The angry eye of a hurricane-like storm appears dark red while the fast-moving hexagonal jet stream framing it is a yellowish green. Low-lying clouds circling inside the hexagonal feature appear as muted orange color. A second, smaller vortex pops out in teal at the lower right of the image. The rings of Saturn appear in vivid blue at the top right.

Credit: NASA/JPL-Caltech/Space Science Institute