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Science

Inexpensive 3D-printed lens gives terahertz imaging a boost

Terahertz radiation is a growing field of technology that enables faster materials analysis than X-ray examination, and provides non-destructive, internal analysis of a raft of different types of materials. Now researchers have developed a way of manufacturing lenses operating at this frequency that are simple and inexpensive, but are claimed to produce near-flawless images which could vastly improve biomedical imaging as well as biological and explosive security scanning.Read More

Science

Twisting puts the brakes on light in a vacuum

The speed of light is a universal constant, but, according to scientists at the University of Ottawa, not that constant. A team of researchers led by assistant professor Ebrahim Karimi has discovered that twisted light traveling through a vacuum moves slower than the speed set by Einstein's theory of relativity, which has implications for quantum computing and communications.Read More

Robotics

Light used to steer muscle-powered bio-bots

It was just a couple of years ago that we heard about how scientists at the University of Illinois were using electrical fields to activate tiny muscle-powered "walking" biological robots – or "bio-bots." Ultimately, it was hoped that such devices could be used for applications such as targeted drug delivery within the body. Recently, however, the researchers made an improvement: the bio-bots can now be steered using light.Read More

Science

Visible light search for gravitational waves black hole merger comes up empty

Last week an international team of scientists announced that they had made history by directly detecting gravitational waves. In light of those findings, a second team has attempted to detect the burst of visible light given off by the source of the waves – two merging black holes. The results were disappointing, but could help future attempts at imaging the source of gravitational waves.Read More

Outdoors

Fuel cell lantern ditches batteries for salt water

For many people, camping/emergency lanterns are one of those things that may sit for months without being used, only to have dead batteries when they're finally needed again. While solar-powered lanterns are one alternative, they do still need to sit in the sunlight for a few hours in order to charge. That's where Hydra-Light's PL-500 comes in. It's a fuel cell-powered lantern that's ready to shine as soon as it receives some salt water.Read More

Outdoors

Zyntony's flexible, wearable Ra light keeps heads and hands free

Even the best flashlights aren't as effective when your hands are busy with other tasks. Headlamps provide convenience and freedom, although visibility is limited by direction, with the potential to blind others upon eye contact. That's why Zyntony has created a new type of adventure light that pairs high lumen output with versatile mounting. The Ra is designed to magnetically strap to clothing, backpacks, or gear for broad area illumination.Read More

Science

Standout science and technology in 2015

The blistering advance of technology we are experiencing in the 21st century is nothing short of mind-boggling, and the rate of change being exponential, 2015 was by definition the busiest year yet. So before the Gregorian calendar keels over into 2016, let's take a wander through some of the year's most significant, salutary and attention-grabbing examples of scientific achievement, technological innovation and human endeavor.
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