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From NASA's Scientific Visualization Studio. New images from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft show the moon's crust is being st...
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From NASA's Scientific Visualization Studio. New images from NASA's Lunar Reconnaissance Orbiter (LRO) spacecraft show the moon's crust is being stretched, forming minute valleys in a few small areas on the lunar surface. Scientists propose this geologic activity occurred less than 50 million years ago, which is considered recent compared to the moon's age of more than 4.5 billion years.
A team of researchers analyzing high-resolution images obtained by the Lunar Reconnaissance Orbiter Camera (LROC) show small, narrow trenches typically much longer than they are wide. This indicates the lunar crust is being pulled apart at these locations. These linear valleys, known as graben, form when the moon's crust stretches, breaks and drops down along two bounding faults. A handful of these graben systems have been found across the lunar surface.
We think the moon is in a general state of global contraction because of cooling of a still hot interior," said Thomas Watters of the Center for Earth and Planetary Studies at the Smithsonian's National Air and Space Museum in Washington, and lead author of a paper on this research appearing in the March issue of the journal Nature Geoscience. "The graben tell us forces acting to shrink the moon were overcome in places by forces acting to pull it apart. This means the contractional forces shrinking the moon cannot be large, or the small graben might never form."
The weak contraction suggests that the moon, unlike the terrestrial planets, did not completely melt in the very early stages of its evolution. Rather, observations support an alternative view that only the moon's exterior initially melted forming an ocean of molten rock.
In August 2010, the team used LROC images to identify physical signs of contraction on the lunar surface, in the form of lobe-shaped cliffs known as lobate scarps. The scarps are evidence the moon shrank globally in the geologically recent past and might still be shrinking today. The team saw these scarps widely distributed across the moon and concluded it was shrinking as the interior slowly cooled.
Based on the size of the scarps, it is estimated that the distance between the moon's center and its surface shank by approximately 300 feet. The graben were an unexpected discovery and the images provide contradictory evidence that the regions of the lunar crust are also being pulled apart.
"This pulling apart tells us the moon is still active," said Richard Vondrak, LRO Project Scientist at NASA's Goddard Space Flight Center in Greenbelt, Md. "LRO gives us a detailed look at that process."
As the LRO mission progresses and coverage increases, scientists will have a better picture of how common these young graben are and what other types of tectonic features are nearby. The graben systems the team finds may help scientists refine the state of stress in the lunar crust.
"It was a big surprise when I spotted graben in the far side highlands," said co-author Mark Robinson of the School of Earth and Space Exploration at Arizona State University, principal investigator of LROC. "I immediately targeted the area for high-resolution stereo images so we could create a three-dimensional view of the graben. It's exciting when you discover something totally unexpected and only about half the lunar surface has been imaged in high resolution. There is much more of the moon to be explored."
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Wi-Fi connects electronic devices to wireless computer networks (wireless LAN) using electromagnetic radiation. Wi-Fi is installed in homes, school...
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Wi-Fi connects electronic devices to wireless computer networks (wireless LAN) using electromagnetic radiation. Wi-Fi is installed in homes, schools, offices, stores, hotels, coffee shops, airports, libraries, hospitals, public buildings and even entire sections of cities. Wi-Fi signals are, unlike TV and radio signals, strong enough to penetrate concrete walls. Many health experts consider Wi-Fi radiation to be dangerous.
Wi-Fi technology is used by personal computers, laptops, smartphones, tablets, Bluetooth hands-free handsets, wireless video game consoles, MP3 players, smart meters and other wireless applications.
Wi-Fi signals use a frequency of 2.4 GHz, nearly identical to the frequency of microwave ovens (2.45 GHz) and similar to those of mobile or cell phones (GSM phones use 1.8 or 1.9 GHz and the UMTS 3G phones use 2.1 GHz).
Since Wi-Fi is so recent, no studies have yet been done on the long-term health effects of Wi-Fi. However, thousands of studies have been done on the health effects of mobile phones and mobile phone masts. These studies have found that mobile phone radiation can cause cancer! http://bbc.co.uk/news/health-13608444
The health dangers of Wi-Fi radiation are commonly dismissed because Wi-Fi is so convenient. However, scientific studies suggest that prolonged exposure to the low-level electromagnetic radiation can cause many health problems. http://news.bbc.co.uk/2/hi/programmes...
Wi-Fi radiation penetrates the body, affects cell membranes and over time cells to lose their ability to function properly. Wi-Fi radiation disturbs the body's natural energy field causing stress, fatigue and a weakened immune system. Wi-Fi radiation can cause headaches, concentration problems, dizziness, anxiety, memory loss, depression, hyperactivity, abnormal heart rates, seizures, epilepsy, nausea, skin rashes, insomnia, ringing ears, high blood pressure, brain damage, autism, diabetes, fibromyalgia, infertility, birth defects, DNA damage, leukemia, cancer, etc. http://safespaceprotection.com/harmfu...
Children are especially vulnerable to Wi-Fi radiation signals because their nervous systems and brains are still developing. Their skulls are thinner and smaller, so the radiation penetrates their brains more deeply. Many schools are now using Wi-Fi but this is negatively affecting the learning abilities of children! http://safeschool.ca/Home.html_script...
If you have Wi-Fi at home and your children use laptops or play wireless video games they are living in a virtual soup of electromagnetic radiation, exposing them to many health risks. Most Wi-Fi routers and modems don't get turned off at night and thus homes are flooded with radiation 24/7.
Other sources of electromagnetic radiation are cordless phones and baby monitors. These devices use DECT technology (similar to Wi-Fi) with frequencies of 1.9, 2.4 and 5.8 GHz.
Contrary to claims of the Wi-Fi industry, Wi-Fi radiation is NOT safe!
Turn off Wi-Fi in your home for 60 days and discover how your health will improve!
"My people are destroyed for lack of knowledge." Hosea 4:6 (KJV)
Playlist 'The Dangers of Wi-Fi and Mobile Phones': http://youtube.com/view_play_list?p=C...
More information about Wi-Fi: http://wiredchild.org http://safeschool.ca http://citizensforsafetechnology.org http://radiationresearch.org http://emfnews.org http://centerforsaferwireless.org http://emfeffectsonkids.com http://arizonaadvancedmedicine.com/ar... http://wirelesswatchblog.org/wi-fi-in... http://powerwatch.org.uk/rf/wifi.asp http://wifiinschools.org.uk http://wifiinschools.com http://emf.mercola.com http://powerwatch.org.uk http://es-uk.info http://magdahavas.com/?s=wifi
Protection tips: http://safespaceprotection.com http://earthcalm.com http://wiredchild.org/parents.html http://emfacts.com/wifi-flyer http://slt.co
Scientific research: http://wifiinschools.org.uk/6.html http://bioinitiative.org/freeaccess/r... http://electromagnetichealth.org/elec... http://electricwords.emfacts.com/
Other websites: http://international-emf-alliance.org http://elektrosmog.com/de/_br__img_sr... http://emfacts.com http://emwatch.com http://mastsanity.org http://mastaction.co.uk http://microwavenews.com http://emrpolicy.org http://mast-victims.org http://hese-project.org/hese-uk/en/ni... http://livingplanet.be/emradiation.htm http://electrosensitivity.org
Make a difference! http://fonteine2.com/make_difference....
For all my health videos click below or search for: health4me http://youtube.com/view_play_list?p=2...
HealthRanger7 http://youtube.com/HealthRanger7
BBC Panorama George Carlo Magda Havas Wi/fi EMF EMR WiMAX
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Hope to keep in touch, have
a great day!! From Torino, MAMAGARI
"Put a sheet of music in front of him!" :) ahah
have a great day!! Ciaoooooooooo, MAMAGARI :D