Excerpt from huffingtonpost.comI am a huge science enthusiast and an unabashed science fiction fan. There are tons of really cool stories out there that fire the imagination and even inspire young people to go into science. (I know they did me.) ...
Tag: electromagnetism
Excerpt from
wallstreetotc.comThe invisible force field seems to be taken from a Star-Trek movie script – it’s invisible, it’s steady, and it doesn’t allow harmful cosmic radiation penetrating into our planet’s atmosphere. Massachusetts Institute of Technology researchers say it was first noticed by two NASA spacecrafts orbiting the Van Allen radiation belt on a 7,200 miles (11,000 km) altitude.
This new invisible force field protecting Earth does a very good job at blocking highly radioactive electrons populating Earth’s upper atmospheric region. NASA said these “ultrarelativistic” electrons were extremely aggressive and they easily circulate in space at speeds very close to the speed of light. They also fry everything on their way from spacecrafts to communication satellites. NASA launched two probe crafts, the Van Allen probes, for the sole purpose of studying these electrons and improving the safety level of their spacecrafts and crew.
NASA says although these electrons are attracted towards Earth by its magnetic field, they cannot get closer than 7,200 miles to it due an invisible shield-like barrier, never detected before. This barrier protects Earth from harmful cosmic radiation and has already done a good job in the past by deflecting several solar blows directed towards Earth. It seems that this mysterious force field operates on low frequency electromagnetism, but its source is still uncertain.
In the end, researchers found out that the barrier was probably generated by the plasmaspheric hiss, a phenomenon occurring in the upper parts of the atmosphere. This plasmaspheric hiss deviates from orbit the fast-moving dangerous particles, and sets them on a parallel plan to one of the Earth’s magnetic field lines, forcing them to fall into the atmosphere, collide with neutrally charged particles, and disappear.
Mary Hudson, professor of physics, said the new NASA observations made over more than two years through its Van Allen probes confirmed the inner barrier’s existence, and brought invaluable new information to the particle acceleration theory.
 |
| LED lighting, as seen here in a Tokyo holiday display, has increased energy efficiency in homes and buildings around the world. |
Excerpt from news.nationalgeographic.co
Blue-light innovation paved the way for a transformation in lighting efficiency.
The 2014 Nobel Prize in physics went Tuesday to three scientists who gave lighting a makeover by inventing blue LED lights. The award recognizes a seemingly commonplace innovation, but one that has paved the way for a sea change in lighting efficiency that is under way around the world.
Isamu Akasaki, Hiroshi Amano, and Shuji Nakamura developed the blue light-emitting diode (LED) in Japan in the early 1990s, triggering a "fundamental transformation of lighting technology," according to a press release from the Royal Swedish Academy of Sciences, which awarded the prize.
Red and green diodes had been around for several years, but adding blue diodes allowed a mix that could produce practical white-light LED bulbs.
LEDs use less energy than do other forms of lighting, including compact fluorescent (CFL) and incandescent bulbs. A typical LED bulb can produce around 83 lumens per watt—a measure of how much brightness you can get from a unit of electrical power—compared with 67 for a comparable CFL bulb and 16 for an incandescent.
LEDs also last about 30 times longer than incandescent bulbs do, according to the Energy Information Administration, and many LED bulb products promise up to 25,000 hours of use—more than 17 years if you used one for about four hours a day.
One of the main barriers to adoption of LEDs has been price: A typical bulb can cost more than twice as much as a comparable CFL. But LED prices are coming down, and use is growing.
The lighting transformation is not only in residences. LEDs are also being used for street lights, public holiday and decorative displays, commercial buildings, and other large energy users.
Related:
LEDs also hold promise for bringing light to the more than 1.5 billion people around the world without access to an electricity grid, the Royal Swedish Academy of Sciences noted.
{mainvote}
The Inner Earth & Realm of Aghartha
Aghartha In The Hollow Earth!
By Dr Joshua David Stone
The biggest cover-up of all time is the fact that there is a civilization of people living in the center of Earth, whose c...
This work is licensed under a Creative Commons Attribution 4.0
International License.
unless otherwise marked.
Terms of Use | Privacy Policy
— Up ↑ —
Comments