Priligy online now, save money
Preventing Pollution

New Lasers Make Radioactive Waste Safe

Radioactive waste is good choice cheap levitra online only a problem when it remains radioactive for vast amounts of time. Unfortunately, many of the click here buy levitra online canada byproducts of nuclear fission have half-lives of online pfizer viagra millions of years. Right now, we have no idea what to do with this stuff. It's hard to imagine next century, let alone 15 million years from now. Do we really want to leave this stuff lying around? It will almost certainly escape from anywhere we put it.

Luckily, scientists are working on ways to avoid these long-term problems. British scientists have "transmuted" iodine-129 into iodine-128 with a high-powered laser. Now, dropping one neutron might not seem like a big deal, but the half-life of iodine-129 is 15 million years while the half-life of iodine 128 is 25 minutes.

They've done it by focusing a high-powered laser on a pellet of gold for an extremely brief amount of time. The gold ionizes, becomes plasma, and emits gamma rays. The gamma rays then smash into the iodine, forcing out a neutron and canadian pharmacy online making the material safe.

Now, scientists just have to figure out how to scale the process up to levels necessary in disposing of nuclear wastes, while keeping costs lower than the planned facility at Yucca Mountain. I wish them luck.



Carbon Scrubbing Ceramic Tubes

While it'd be great if we could switch over to 100% solar power right now, we can't. We're stuck with burning fossil fuels...for a while at least. So lets start thinking of ways to keep fossil fuels from releasing CO2 into the atmosphere.

Well, we can simply use that CO2 for a variety of tramadol sales applications, like feeding algea to produce biofuels. Yeah, that one sounds good. Bad news though, the fumes from coal power plants contain a lot more than CO2. The nitrogen oxides in the viagra to buy fumes would outright kill the algea. So nix on recommended site levitra canadian that idea right? Wel...not so fast.

Two researchers, at the University of Newcastle Ian Metcalfe and Alan Thursfield are thinking about using a new kind of ceramic material to control the burning environment of the coal. These ceramic tubes can actually pull pure oxygen from the air. So they plan to burn coal in pure oxygen. If there's no nitrogen in the combustion chamber, then no nitrogen oxides will be emitted. And, voila, there you have an ultra-efficient, ultra-clean burning coal fired power station. And the only thing leaving the smoke stack is pure CO2 and ash.

The ash is scrubbed out like it always has been, and the pure CO2 can be used to help create biofuels. Sounds pretty promising, and we'll keep an eye on the technology as it attempts to leave the lab.

Via Inhabitat  and The Unviersity of Newcastle

TerraPass Does Survey, Feels Better About Self

TerraPass is one of the world's leading providers of carbon offsets. Basically, if you feel bad about all the carbon you're producing, you can give them some money, and they'll fund projects that offset your contributions to global warming.

Now there's several schools of cheap levitra 50mg thought on this, but one of the major contentions is that companies like TerraPass simply let people go on polluting to canada generic viagra their heart's content while buying off their guilt. Well, TerraPass took this criticism to heart and decided to ask folks who purchase their service what else they do to help the environment.

The results are in, and rather promising for TerraPass. People who buy offsets are certainly not increasing their load on the Earth. In fact, they tend to have done a great deal more than the average American to reduce their impacts. The majority support environmental organizations, 86% keep an eye on their thermostat, and 24% ride their bikes to work. This last number is particularly impressive, as it is fifteen times the National average.

Keep reading this story for more numbers from the TerraPass survey, or head to their blog to read their account of the news.

Intel Gets the Lead Out

Intel has recently announced that their newest chips (and all future chips) are going to be lead-free. And this is not 99.99% (like we see for batteries and some other applications for various materials) but 100% lead free. 

Intel on Tuesday said its future microprocessors will be lead free, a move that coincides with the tech industry trend toward more environmentally friendly products. The chipmaker said its "green" processors would start with its next generation Core 2 Duo, Core 2 Quad, and Xeon products. Production of the 45-nanometer processors is set to begin the second half of this year.

There are a number of unpleasant chemicals inside the case of the average PC. But things are starting to get better. European RoHS standards (which we've mentioned before) require reductions or elimination of many of these chemicals. 

Unforunately, lead is not the most egregious of cheap viagra india these chemicals, and the CPU chip is not the greatest source of contamination inside a PC case. Brominated fire retardants among other chemicals inside the case are more worrying to us than lead is. We're generally more excited about announcements of new processors with lower energy demands, because those have a bigger impact than the relatively tiny amount of some elements in the chips. But it's good to see manufacturers continuing with these incremental steps, as well as the bigger ones.


Using Aluminum to Create Hydrogen

Using hydrogen as a vehicle fuel is one of the possible solutions being touted as a replacement for oil-based fuels. Hydrogen fueled vehicles would be preferable because their emissions are merely water vapor, rather than CO2. But carrying around hydrogen in fuel tanks makes people twitchy. And there is no national infrastructure to cialis 10 mg distribute hydrogen the way we currently distribute gasoline.

Researchers at Purdue University have developed a process that produces hydrogen gas when water comes in contact with special pellets made of aluminum and gallium. Normally, aluminum quickly forms a skin on its surface which inhibits this process from taking place (which is why aluminum cans don't dissolve into clouds of hydrogen gas when filled with liquid). But the gallium prevents the skin from forming, and allows the aluminum to remain reactive.

Of course, refining aluminum in the first place is cialis pfizer online an incredibly energy intensive process, so the production of these gallium-aluminum pellets won't be cheap. But the ability to produce hydrogen as it is needed and in a transportable form is an interesting prospect. Those of you who are patiently waiting for the hydrogen economy now have a little bit less to wait for.

Via Physorg

Start   Prev   21 22 23 24 25 26 27 28 29 30   Next   End

Page 30 of 37

Are you an EcoGeek?

We've got to keep 7 billion people happy without destroying our planet. It's the biggest challenge we've ever faced....but we're taking it on. Are you with us?

The Most Popular Articles