Self-Cleaning Solar Panels

Solar panels work best outside and as a result nature tends to get dust, dirt, grime, and such on the panels which lower the efficiency of the panels. Now some researchers have accidentally found a way to have self-cleaning solar panels to cut back on maintenance costs and increase efficiency.

Molecular microbiology and biotech professor Ehud Gazit and his team research ways to control peptide atoms and molecules. People with Alheimer’s disease have a peptide called beta amyloid found in the plaques that form in their brains. While working on self-assembling nano-tubules in the lab, the scientists made an interesting discovery.

They got the peptides to self-assemble in a vacuum, forming tiny tubes that look like grass. The resulting nanocoating repels dust and water, which would be useful for protecting desert solar arrays, reducing maintenance. Plus, the material has potential as a super-capacitor, which could give lithium batteries more kick. The assembly technique is detailed in Nature Nanotechnology

Keep reading about it at Discovery.

Mobile Tech Makes Donating Insanely Easy

It’s the giving time of year, and MobHappy has a short writeup on new technology that allows people to donate to charities, simply by sending a text. This is a great advancement, because it shortens the gap between intention and action where a lot of charitable dollars are lost.

Today, mGive works with over 200 charities, enabling mobile users to donate money quickly and easily via shortcode. And it’s been successful: one campaign, featuring Alicia Keys and conducted during the American Idol TV show saw 90,000 donors raise $450,000 in just minutes. Donors have given about $1.5 million via mobile so far in the US; this exceeds the first year of online donations, and those now amount to some $18 billion per year.

Unfortunately the service is currently only available to our US friends.

Read the rest of the article

Two Cancer Codes Cracked

Here’s some good news from the fine people trying to uncover the mysteries behind all sorts of cancers.

Researchers have mapped the DNA mutations in skin and lung cancer — findings that one researcher says will change how cancer is viewed.

For lung cancer, the British team found almost 23,000 mutations — one mutation for every 15 cigarettes smoked.

“This is a fundamental moment in cancer research,” said Prof. Michael Stratton from the Wellcome Trust Sanger Institute in Cambridge. “From here on in we will think about cancers in a very different way.”

Scientists knew that smoking causes genetic mutations than can start tumours. But they didn’t expect to see evidence of the genome bearing scars of every cigarette smoked. When they catalogued the mutations, they saw how cancer-causing agents in tobacco repeatedly bombard the DNA.

Keep reading the article at the CBC.

Wind Turbines are not a Health Risk

A small group of people have complained and argued that wind turbines can cause health problems. A new study confirms that those people are wrong and in fact wind turbines are not a health risk at all.

The study acknowledges that a minority of people find the intermittent swooshing noise emitted by the turbines’ giant blades to be annoying, but it also concluded: “Annoyance is not a pathological entity.”

The study says there’s “nothing unique” about the noise or vibrations emitted by wind turbines and no evidence that the audible or sub-audible sounds have any direct adverse effect on health.

It suggests that those who are bothered by turbines simply have a lower tolerance for annoying sounds of all sorts.

“A major cause of concern about wind turbine sound is its fluctuating nature. Some may find this sound annoying, a reaction that depends primarily on personal characteristics as opposed to the intensity of the sound level.”

Keep reading at the CBC.