One of the most promising forms of artificial photosynthesis involves using solar energy to split liquid water to produce oxygen and hydrogen gas, which can be stored and used as a clean fuel. And one of the most promising semiconductor materials for such a task is gallium phosphide (GaP), which can convert sunlight into an electrical charge and also split water. Unfortunately, the material is expensive, but researchers have now used a processed form of gallium phosphide to create a prototype solar fuel cell that not only requires 10,000 times less of the precious material, but also boosts the hydrogen yield by a factor of 10.
As with every form of the deadly disease, early detection of oesophageal cancer is critical to recovery. The current approach of detecting the cancer through biopsy can be a little hit and miss, so the University of Cambridge's Professor Rebecca Fitzgerald and her team have developed what they claim to be a more accurate tool for early-diagnosis. Billed as "a pill on a string," the Cytosponge is designed to scrape off cells from the length of the oesophagus as it is yanked out after swallowing, offering up a much larger sample for inspection of cancer cells.
An exotic particle theorized more than 85 years ago has finally been discovered. Dubbed the "Weyl fermion", it is a strange but stable particle that has no mass, behaves as both matter and anti-matter inside a crystal, and is claimed to be able to create completely massless electrons. Scientists believe that this new particle may result in super-fast electronics and significant inroads into novel areas of quantum computing.
The number of LED bulbs on the market has exploded in recent years, and with them has come a dizzying array of so-called smart bulbs featuring wireless connectivity and control, allowing users to set options for colors, schedules, and remote on/off functions. Although most of these look and perform similarly, consumer experience still varies as it generally comes down to the execution of the companion app. So how do the devices in MiPow’s Playbulb Studio compare? We lit up these LED bulbs to see how well they shine.
On June 28, SpaceX suffered a major setback when its unmanned CRS-7 mission carrying supplies to the International Space Station (ISS) exploded shortly after liftoff. In a press conference today, SpaceX founder and CEO Elon Musk laid out the preliminary findings of the post-flight investigation which indicate the cause may have been a faulty strut.
When it comes to practicing their tackles, young football players
generally have two options: tackle their teammates and risk one of them
getting injured, or go after an inanimate tackle sled. The Shadowman
Junior, however, offers another choice – it's still not a person who
could get hurt, but it presents a more realistic moving target.
Though last year's Galaxy Tab S was Samsung's best answer yet to the iPad, it didn't really look much like Apple's iconic tablet. That changes this year, as Samsung's Galaxy Tab S2 could almost be mistaken for the iPad Air 2. Let's see how the two tablets compare.
Doing a web search for an item that you remember seeing can be difficult,
if you don't know what that thing is called and you don't have a
picture of it. If only you could just draw a rough sketch of what you
saw on a touchscreen, and use that as your search criteria. Well, you soon may be able to, thanks to the new Sketch-a-Net computer program.
Although most cyclists probably don't give much thought to their water
bottle or bottle cage, the fact is that like just about anything else,
those components can be lightened and simplified. That's just what
British cycling design company Fabric has done, with its new Cageless
Respiratory diseases such as bronchitis, emphysema and asthma are extremely prevalent, with more than 35 million sufferers in the US alone. Now, a team from the Weizmann Institute of Science has worked to create a new treatment for repairing damaged lung tissue, using the procedure for bone marrow stem cell transplantation as a template.