Baking soda slow down to global warming

Jones has devised a way to make baking soda out of carbon dioxide emissions with SkyMine, a process that converts 90 percent of carbon dioxide from smoke stacks into baking soda. The energy to make this conversion uses waste heat, making it an interesting green operation.More

Making Your Digital Camera Battery Last Longer

With all the features digital cameras have these days, you may find keeping batteries a problem. This could well be your biggest expense, but there are some things you can do to increase the length of time your batteries stay charged. Let’s start with the three biggest sources of power drain. The LCD screen takes up the most power. It is possible to turn this feature off unless you really feel the need for it. Using the camera’s viewfinder will conserve power. Another big power drain is the flash. Whenever you can, use natural lighting to take your photos and turn off the flash. This will help save your battery for times when you absolutely need the flash. A third drain on your battery is constantly using your zoom. It takes more power zooming in and out than it does keeping your zoom at a steady place. Try to find a setting you like and sticking with it as much as possible.. Some other things you can do to make your battery last longer are:: http://www.review5.info * Make sure Power Saving mode is on, or simply switch off your camera when you're not using it. * In cold weather, keep your camera and batteries warm in your jacket until you are ready to use them. The cold drains batteries very quickly. * Store batteries in a cool, dry location away from sunlight and other heat sources. * Avoid unnecessary playback of your already taken images. Try to decide when you take the picture if it is a “keeper” or needs deleted and then refrain from reviewing until the pictures are downloaded to your computer. * Use the AC adapter. Most digital cameras have an adapter that allows you to plug directly into a power point. If you don’t plan on moving around a lot and are near an outlet, the AC adapter will increase the life of your batteries. Needing to buy more or recharge your battery is something you won’t be able to avoid completely, but with a few precautions this won’t be needed as often.About The Author:http://www.reviews9.info

'Extreme contrast found in ozone losses at North, South Poles'

A new study shows a dramatic loss of the ozone in the Antarctic over the past 20 years as compared to the same phenomenon in the Arctic, added the local ozone depletion in Antarctic at some altitudes frequently exceeded 90 percent and more.


The study found "massive" and "widespread" localized ozone depletion in the heart of Antartica's ozone hole region, beginning in the late 1970s, but becoming more pronounced in the 1980s and 90s.



The US government scientists who conducted the study said on Monday that there was an almost complete absence of ozone in certain atmospheric air samples taken after 1980, compared to earlier decades.



In contrast, the ozone losses in the Arctic were sporadic, and even the greatest losses did not begin to approach the regular losses in the northern hemisphere, the researchers said.



"Typically the Arctic loss is dramatically less than the Antarctic loss," said Robert Portmann, an atmospheric scientist with the National Oceanic and Atmospheric Administration in Boulder, Colorado.



Scientists have been tracking the expanding ozone hole over Antarctica for some 20 years now.



In October, NASA scientists reported that this year's hole is the biggest ever, stretching over nearly 11 million square miles.



In Antarctica, local ozone depletion at some altitudes frequently exceeded 90 percent, and often reached up to 99 percent during the Antarctic winter in the period after 1980 compared to earlier decades, the researchers said.



In the Arctic, the losses occasionally peaked at 70 percent, and some losses of 50 percent were seen in the mid 1990s, when temperatures were particularly low, but the scale and scope of the problem was much less than what was seen in the Northern Hemisphere.

Self-organizing traffic lights: A realistic simulation

In this paper, we extend these results to a realistic setting, implementing self-organizing traffic lights in an advanced traffic simulator using real data from a Brussels avenue. On average, for different traffic densities, travel waiting times are reduced by 50% compared to the current green wave method. More…

Why is spider silk so strong?

The different silks have unique physical properties such as strength, toughness and elasticity, but all are very strong compared to other natural and synthetic materials. Dragline silk combines toughness and strength to an extraordinary degree. A dragline strand is several times stronger than steel, on a weight-for-weight basis, More…

Alzheimer’s Protein Injected Into Mice

Scientists injected a sticky goo from Alzheimer’s victims into the brains of mice and watched it take over, provocative research that promises to help shed new light on the earliest stages of the memory-robbing disease. More…

Permanent link to this post (38 words, estimated 9 secs reading time)
Filed under Sci-Tech

Supernova leads to questions about death of stars

Astronomers have discovered a distant supernova, or exploded star, so large that it will force scientists to question their understanding of how certain older stars disintegrate.Scientists have believed that dying stars known as ‘’white dwarfs'’ can’t expand to more than 1.4 times the size of our sun without exploding in a massive thermonuclear blast.That rule, known as the ‘’Chandrasekhar Limit,'’ has served as the foundation of decades of astrophysical research and helped scientists estimate the size of the universe.But a team of astronomers on 20th September said that they have found a supernova in a galaxy 4 billion light years away that reached a mass twice that of the sun before exploding.‘’It should not be possible to break this limit but nature has found a way,'’ said Andy Howell, the University of Toronto researcher who discovered the supernova.‘’Now we have to figure out how nature did it,'’ Howell said in a statement.The star could have been spinning so fast that centrifugal force pushed it beyond the usual limit, Howell and other researchers said.The explosion also could have come from two white-dwarf stars merging.
This is a preview of Supernova leads to questions about death of stars. Read the full post (306 words, estimated 1:13 mins reading time)
Filed under Sci-Tech