Monday, 25 June, 2018

The Quest to Make a Crystal Harder Than Diamonds

The Quest to Make a Crystal Harder Than Diamonds

Posted on Thursday, 25 August, 2016Thursday, 24 August, 2017 by Zheluo Cai

The Quest to Make a Crystal Harder Than Diamonds.

What are Q-Carbon and Nanocrystalline Diamond Balls that are able to withstand pressures at 1,000 Giga Pascals (GPa)? That is equivalent to about 3,000 adult African elephants all standing on a single stiletto heel. Geophysicists also use the GPa in measuring or calculating tectonic plate stresses and pressures within the Earth. The pascal is an International System of Units of pressure used to quantify internal pressure or ultimate tensile strength of a substance. So, 1 GPa is 1,000,000,000 Pa. It is named after the French mathematician Blaise Pascal. Normal diamond crystals, one of the hardest materials on Earth would disintegrate at 120 GPa. This article takes us into the search and possible application of such material.

Read Article Here:

http://www.bbc.com/future/story/20160818-the-quest-to-make-a-crystal-harder-than-diamonds

The Once and Future Stars of Andromeda.
Credit and Copyright: ESA/Herschel/ PACS/SPIRE/J.Fritz(U.Gent) / XMM-Newton/EPIC/W.Pietsch(MPE). The big, beautiful Andromeda Galaxy, aka M31, is a spiral galaxy a mere 2.5 million light-years away. Two space-based observatories have combined to produce this composite image of Andromeda, at wavelengths outside the visible spectrum. In reddish hues, image data from the large Herschel infrared observatory traces enormous lanes of dust, warmed by stars, sweeping along Andromeda's spiral arms. The dust, in conjunction with the galaxy's interstellar gas, comprises the raw material for future star formation. X-ray data from the XMM-Newton observatory in blue pinpoint Andromeda's X-ray binary star systems. These systems likely contain neutron stars or stellar mass black holes that represent final stages in stellar evolution. More than twice the size of our own Milky Way, the Andromeda Galaxy is over 200,000 light-years across.

The Mohawk people are the most easterly tribe of the Haudenosaunee, or Iroquois Confederacy, an Iroquoian-speaking indigenous people of North America. The Mohawk were historically based in the Mohawk Valley in present-day upstate New York west of the Hudson River; their territory ranged north to the St. Lawrence River, southern Quebec and eastern Ontario; south to greater New Jersey and into Pennsylvania; eastward to the Green Mountains of Vermont; and westward to the border with the Iroquoian Oneida Nation's traditional homeland territory. Their current major settlements include areas around Lake Ontario and the St Lawrence River in Canada and New York.

The flag of Malaysia is composed of a field of 14 alternating red and white stripes along the fly and a blue canton bearing a crescent and a 14-point star known as the Bintang Persekutuan (Federal Star). The 14 stripes, of equal width, represent the equal status in the federation of the 13 member states and the federal territories, while the 14 points of the star represent the unity between these entities. The crescent represents Islam, the country's state religion; the blue canton symbolises the unity of the Malaysian people; the yellow of the star and crescent is the royal colour of the Malay rulers. It was first raised on 16 September 1963.

Germany - Level 2: Exercise Increased Caution Tuesday, 19 June, 2018
Exercise increased caution in Germany due to terrorism. Terrorist groups continue plotting possible attacks in Germany. Terrorists may attack with little or no warning, targeting tourist locations, transportation hubs, markets/shopping malls, local government facilities, hotels, clubs, restaurants, places of worship, parks, major sporting and cultural events, educational institutions, airports, and other public areas. Read the […]
Belarus - Level 1: Exercise Normal Precautions Monday, 18 June, 2018
Exercise normal precautions in Belarus. Read the Safety and Security section on the country information page. If you decide to travel to Belarus: Enroll in the Smart Traveler Enrollment Program (STEP) to receive Alerts and make it easier to locate you in an emergency. Follow the Department of State on Facebook and Twitter. Review the […]

Ethiopia Saturday, 23 June, 2018
Summary: Addis Ababa: Saturday 23 June: A large rally in support of Ethiopian Prime Minister, Dr Abiy Ahmed, was disrupted by a grenade attack, resulting in c80 injured, some seriously. Minor incidents were reported as crowds dispersed, but the streets are now mostly calm. We encourage visitors to continue to follow our advice below on […]
GOV.UK
South Africa Friday, 22 June, 2018
Latest update: Safety and Security section (Crime) - revised information; risk of crime increases in urban areas, particularly central business districts of major cities and townships on the outskirts of major cities; a higher state of awareness is required if travelling through these areas
GOV.UK

Bible verses brought to you by bVerse Convert and BibleGateway.com