Shopping? Check out our latest product comparisons

Caltech

Bill Gates weighs evaluates the Toronto Toilet at the Reinvent the Toilet fair in Seattle

In an effort to improve conditions for the more than 2.5 billion people worldwide with no access to safe sanitation, the Bill & Melinda Gates Foundation last year awarded grants totaling US$3 million to eight universities to reinvent the toilet. At the two-day “Reinventing the Toilet” fair held in Seattle this week, where Bill Gates was on hand with 50 gallons (189 l) of fake feces made from soybeans and rice to put the various designs through their paces, a California Institute of Technology (Caltech) team claimed first place for their solar-powered toilet.  Read More

Researchers have created an artificial jellyfish (right) dubbed 'Medusoid' using rat heart...

Having roamed the seas for at least 500 million years and holding the title of the oldest multi-organ animal on the planet, jellyfish have certainly stood the test of time. So it’s probably not surprising to see various research groups looking to the gelatinous, umbrella-shaped animals for inspiration in a number of areas, including the development of ocean-going robots. Now researchers at Harvard University and the California Institute of Technology (Caltech) looking to gain a better understanding of how biological pumps such as the heart work, have created an artificial jellyfish from rat heart muscle and silicon.  Read More

In this diagram, the blue spheres represent selenium atoms forming a crystal lattice, whil...

Thermoelectric materials work by converting differences in temperature into electric voltage. If two parts of such a material experience significantly different temperatures, electrons within it will flow from the warmer part to the cooler, creating an electrical current in the process. Using these materials, electricity could be generated by the temperature differences on the inside and outside of jackets, within car engines, or even between the human body and the air around it ... just to list a few examples. An international team of scientists have now discovered that an existing material, which behaves like a liquid but isn't one, displays particularly impressive thermoelectric properties.  Read More

An international team of researchers has set a world record two-way data rate over long di...

An international team is claiming a data transfer record that puts any home broadband connection to shame. At last month’s SuperComputing 2011 (SC11) conference in Seattle, researchers reached transfer rates of 98 gigabits per second (Gbps) between the University of Victoria Computing Centre located in Victoria, British Columbia, and the Washington State Convention Center in Seattle. Coupled with a simultaneous data rate of 88 Gbps in the opposite direction the team reached a two-way data rate of 186 Gbps to break their own previous peak-rate record of 119 Gbps set in 2009.  Read More

The new micro-lattice material is so light that it can sit atop dandelion fluff without da...

Researchers have created a new metallic material that they claim is the world’s lightest solid material. With a density of just 0.9 mg/cm3 the material is around 100 times lighter than Styrofoam and lighter than the "multiwalled carbon nanotube (MCNT) aerogel" - also dubbed "frozen smoke" – with a density of 4 mg/cm3 that we looked at earlier this year. Despite being 99.99 percent open volume, the new material boasts impressive strength and energy absorption, making it potentially useful for a range of applications.  Read More

The ePetri prototype uses an image sensor and a smartphone's LED display as a scanning lig...

When it comes to laboratory equipment, it doesn’t get much more basic than the humble petri dish. Aside from moving from glass to plastic and the addition of rings on their lids and bases that allows them to be stacked, the petri dish has remained largely unchanged since its invention by German bacteriologist Julius Richard Petri and his assistant Robert Koch in the late 1800s. Now researchers at the California Institute of technology (Caltech) have dragged the petri dish into the 21st Century by incorporating an image sensor like those found in mobile phone cameras that does away with the need for bulky microscopes.  Read More

A schematic of an acoustic diode, showing how the elastic spheres are able to convert the ...

When it comes to the sound-proofing of buildings, most people likely think of using materials that simply absorb the sound waves in a noisy room, so they can't proceed into a neighboring quiet room. Researchers at the California Institute of Technology (Caltech), however, are taking a different approach. They have created something known as an acoustic diode, that only allows sound traveling through it to go in one direction. If incorporated into building materials, such diodes would let sound travel from the quiet room to the noisy one, but would simply block noise transmission in the opposite direction.  Read More

Artist's concept illustrating a quasar, or feeding black hole, similar to APM 08279 5255, ...

Two international teams of astronomers have discovered the largest and farthest reservoir of water ever detected in the universe. The researchers found the huge mass of water feeding a black hole, called a quasar, more than 12 billion light-years away. The mass of water vapor is at least 140 trillion times that of all the water in the world's oceans combined and 100,000 times more massive than the sun.  Read More

Scientists at Caltech have created the world's first DNA-based artificial neural network

One of the things that our brains excel at is the ability to recognize what things are, even when presented with an incomplete set of data. If we know only that an animal is sold in pet stores and stuffs food in its cheeks, for instance, we can be pretty certain that the animal in question is a hamster. Now, for the first time ever, researchers at the California Institute of Technology (Caltech) have created a DNA-based artificial neural network that can do the same thing ... albeit on a very basic level. They believe that it could have huge implications for the development of true artificial intelligence.  Read More

The Caltech Field Laboratory for Optimized Wind Energy where arrays of closely spaced vert...

Although wind power energy production in 2010 was estimated to be only about 2.5 percent of worldwide electricity usage, wind turbines are considered a mature technology with many experts suggesting that we’re approaching the theoretical limit of individual wind turbine efficiency. For this reason, researchers are now looking at new approaches to wind farm design to increase the power output of wind farms. Researchers at the California Institute of Technology (Caltech) have been conducting a field study and claim the power output of wind farms can be increased at least tenfold by optimizing the placement of turbines on a given plot of land.  Read More

Looking for something? Search our 28,277 articles