ACM-R5 amphibious snake robot

Zombie animals and the parasites that control them

A female Sacculina begins life adrift in the sea, but when the parasite picks up a crab's scent, it sneaks inside the crab's shell and makes itself at home. Once attached, the barnacle sends root-like tendrils all throughout the crab's body.

Those tendrils allow the parasite to draw nutrients from the crab — and take over its mind. From then on, the crab lives only to serve its master — it no longer molts, mates, or re-grows broken appendages, because those activities would take energy away from the barnacle. And when the parasite is ready to reproduce, the crab — even a male one — will care for the barnacle larvae as its own.

Scientific theories that make our heads explode

Stuff like quantum entanglement and multiverses spelled out only the way Cracked can.

Tiny mistakes that led to huge catastrophes

On losing a B-2:

... it's just a $1.4 billion aircraft, not like they could have ever guessed it would be flown in a place where there was humidity. We always go to war with dry countries...
When another bomber pulled into Guam earlier this year, on presumably an equally humid day, a different maintenance crew left the wet sensors the way they were. As it turns out, those air sensors feed data to the Stealth Bomber's flight control system. Important data. The kind that keeps Stealth Bombers in the air...
The malfunctioning sensors resulted in a premature take off, a 30-degree nose-towards-the-sky ascent, and...

The crap science of Michael Crichton's science fiction

Chaos theory does not mean, without “Chaotician” Malcolm even writing down a single equation, that every complex system will fail. Zoos routinely operate without immediate widespread disaster. A similar analysis of the space shuttle, including the math, indicates it’s too complicated to fly, but it does. Why? Because complicated things can be understood, individual parts can be tested for quality, and feedback control systems don’t let just anything happen. And moreover, chaos theory is about understanding predictable aspects of non-linear systems, not just throwing up your hands and saying “it’s unpredictable!”

MIT's guru of low-tech engineering saves the world on $2 a day

The simplest technology on display in Compone creates the biggest stir. It's a thick, tapered plastic ring, lined with ridges, that [Amy] Smith picked up in Zambia. She gathers the villagers around a colorful wool blanket piled high with dried corn on the cob. Women here spend many hours painfully prying kernels off cobs with their fingers. Smith inserts an unshelled ear into the ring and twists. The ridges in the ring dig into the cob, popping dozens of kernels with every motion. Faces brighten, and a few women unconsciously rub the joints of their thumbs...
"A small improvement like that can make a huge difference in people's lives," Smith tells me. "It might mean they can plant three extra rows of corn because they have more time, or maybe their kids don't work as much, and instead they go to school."

Birth of a chicken photo series

Cracked a bunch of eggs open to show the different stages of a chick's development.

Entropy is the arrow of time

The reason why you are not surprised when you open a deck of cards and it's in perfect order is not because it's just easy and natural to find it in perfect order, it's because the deck of cards is not a closed system. It came from a bigger system in which there is a card factory somewhere that arranged it. So I think there is a previous universe somewhere that made us and we came out.

We're part of a bigger structure.

Brian Greene on superstring theory and other dimensions

Extremophile microbes

The Berkeley Pit [an abandoned open pit mine] had become one of the deadliest places on earth, too toxic even for microorganisms. Or so it was thought.
In 1995, an analytic chemist named William Chatham saw something unusual in the allegedly lifeless lake: a small clump of green slime floating on the water's surface. He snagged a sample and brought it to biologist Grant Mitman at the nearby Montana Tech campus of the University of Montana, where Mitman found to his amazement that the goop was a mass of single-celled algae...
For reasons that are not entirely clear, many compounds which attack cancer cells are also harmful to brine shrimp, therefore most modern assay tests include the brine shrimp lethality test as a standard procedure. The Stierles exposed swarms of tiny crustacean volunteers to the Berkeley Pit chemicals, and to their delight, five of the chemicals showed anti-cancer properties.

Researchers pushing their own bodies for science

In 1929, Werner Forssmann was a surgical trainee who wanted to learn about the heart. Unlike other wimpy doctors at the time, instead of learning about it from books or dead animals, he went for the more classic investigatory approach of "poke it with something."
Without any supervision, advice, or regard for that concept you call "survival," he cut a hole in his arm and pushed a catheter all the way up the limb and jammed it into his still-living heart.

Plastics unite to make unexpected metal-like compound

When laid side-by-side the two materials are physically unchanged, but the way electrons behave is subtly altered along the interface where the different materials are in close proximity, says Morpurgo. In tests, they tried cooling down the combined materials, expecting the odd behaviour to disappear because the two plastics become more insulating at lower temperatures.

Instead the interface became a better conductor, just as metals offer less resistance to electricity when they are cooled.

Ways to start an earthquake

Mine a Lot of Coal: Coal provides more than half the electricity in the United States and an even greater percentage in China. That means there are a lot of coal mines working overtime to pull the fossilized fuel out of the Earth. In total, miners pulled 6,195 million metric tons of coal out of the Earth in 2006 alone. And coal mines often have to pump water out along with the coal, sometimes extracting dozens of times as much water as coal. Add it up and you have a huge change in the mass of a region, and huge mass changes refigure the earthquake stresses of an area, sometimes increasing the chance of an earthquake and other times lowering it. Klose's work suggests that more than 50 percent of the human-triggered earthquakes recorded came from mining operations.

"Uniquely" human traits now found in animals

Morality:

A classic study in 1964 found that hungry rhesus monkeys would not take food they had been offered if doing so meant that another monkey received an electric shock. The same is true of rats. Does this indicate nascent morality? For decades, we have preferred to find alternative explanations, but recently ethologist Marc Bekoff from the University of Colorado at Boulder has championed the view that humans are not the only moral species. He argues that morality is common in social mammals, and that during play they learn the rights and wrongs of social interaction, the "moral norms that can then be extended to other situations such as sharing food, defending resources, grooming and giving care".

People killed by their own inventions

Franz Reichelt was a tailor who was convinced that the next big thing was a coat that doubled as a parachute. So he got busy sewing and developed just that. To test the coat/parachute (coatachute? Paracoat?), Reichelt climbed up to the first deck of the Eiffel Tower. He told authorities that he was going to use a dummy to test the invention, but at the last minute he strapped himself in and jumped to his death in front of a large crowd of spectators.

IEEE's singulary report

Thorough roundup of articles, videos, panel discussions.

Modular robot self-assembles when kicked apart

Scientiest killed or injured by their experiments

In 1898, Curie and her husband, Pierre, discovered radium. She spent the remainder of her life performing radiation research and studying radiation therapy. Her constant exposure to radiation led to her contracting leukemia and she died in 1934. Curie is the first and only person to receive two Nobel prizes in science in two different fields: chemistry and physics. She was also the first female professor at the University of Paris.

Altruism needs selfish gene after all

"[In species excluding ants, bees and wasps] the data is much more limited, but it points in the same direction," says Hughes. "You always have ancestral monandry when eusociality evolves." In other words, close genetic relatedness is crucial to the evolution of altruism.

Honda's walking assist device

Applying cooperative control based on the information obtained from hip angle sensors, the motors provide optimal assistance based on a command from the control CPU. With this assist, the user's stride will be lengthened compared to the user's normal stride without the device and therefore the ease of walking is achieved.

The compact design of the device was achieved with flat brushless motors and a control system developed by Honda. In addition, a simple design to be worn with a belt around the hip and thigh was employed to help achieve overall weight as light as approximately 2.8kg. As a result, the device reduces the user's load and can be fit to different body shapes.