Diamonds have been known in India for at least 3, years but most likely 6, years. Their usage in engraving tools also dates to early human history. The dispersion of white light into spectral colors is the primary gemological characteristic of gem diamonds. In the 20th century, experts in gemology developed methods of grading diamonds and other gemstones based on the characteristics most important to their value as a gem. Four characteristics, known informally as the four Cs, are now commonly used as the basic descriptors of diamonds: Geology The formation of natural diamond requires very specific conditions—exposure of carbon-bearing materials to high pressure, ranging approximately between 45 and 60 kilobars 4. These conditions are met in two places on Earth; in the lithospheric mantle below relatively stable continental plates , and at the site of a meteorite strike. The pink and orange areas are shields and platforms , which together constitute cratons. The conditions for diamond formation to happen in the lithospheric mantle occur at considerable depth corresponding to the requirements of temperature and pressure.

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Blog home Natural history collections —- why are they relevant? A curator at the Horniman Museum tells us why natural history collections are important to research — and to the public Natural history room of the Horniman Museum. I’d like to start by thanking GrrlScientist for inviting me to set out my thoughts on the relevance of natural history collections here at Punctuated Equilibrium — it’s an honour.

When I arrived at the Museum in January , I inherited a legacy of excellent natural history education. One of the ways that the Museum carries out its mission is by providing local newspapers with weekly natural history articles.

His interest in radio was a result of a visit to the San Francisco World’s Fair. He and his father started Reno Motor Supply Company in , as dealers in auto and motor parts, later, they added radios and radio parts. Hadley obtained an amateur radio license 6ZO in He decided to try a commercial broadcast station and was issued a license on July 7, with the call letters, KFAS. Hadley’s business, Reno Motor Supply Company, was listed as the station owner. The Class A Commercial Limited license was granted for a term of three months and the first expiration date was to be October 12, Hadley ran watts on a wavelength of meters using a ft.

The license shows the station location at Elko Street. This is a residence still standing on the corner of 6th St. It is also possible that the KFAS transmitter was located at the Reno Motor Supply Company building on Plaza Street, there are reports of the station being located in the basement there. Hadley probably utilized recordings for his advertised, tri-weekly concerts broadcast over KFAS.

American Museum of Natural History

Women’s or Men’s Stockings ca. These knitted stockings were made on a stocking frame, or knitting machine, as two flat pieces. The curved edges of the larger piece were later joined by hand to form a center-back leg seam. The sole was a separate smaller piece that was sewn into the foot. Cora Ginsburg; Silk brocaded with silver and silver gilt, lined with silk and linen, trimmed with later silver lace This sumptuous gown is fashioned from stiff silk brocaded with glittering metallic silver to reflect the available light.

The rich textile and wide hoops mark it as “formal” dress in an era when fashionable daytime clothing no longer had significant side fullness.

The Natural History Museum is an international leader in the study of the natural world. Our science describes the diversity of nature, promotes an understanding of its past, and supports the anticipation and management of the impact of human activity on the environment.

By Laura Vitto The Natural History Museum in London announced Friday that it has disqualified a winning photo from its Wildlife Photographer of the Year competition. But upon further inspection, the museum says it’s now convinced that the animal in the photo is actually just a stuffed version taken from the park’s visitor center. The night raider from Marcio Cabral Image: Museum officials believe this is the anteater pictured in The night raider.

The museum gathered a team of science experts — three from the museum and two outside sources — to solve the mystery. After comparing hi-res photos of the taxidermied animal to Cabral’s winning photo, the museum says the team determined the subjects were the same.

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October 20th, , In pristine condition, it would have looked similar to this double tournois coin. You found a coin in your square? Narwhals are neat animals.

Speed Dating (25 – 39 years olds) Speed Dating (25 – 39 years olds)Jan 21, Organises and runs a Speed dating event at the science museumSpeed dating in cardiff museum foundations of the old St Marys Church on the site of the former Prince of Wales.

Founded in the early s as the Herbarium of the Bureau of Science with Dr. Merrill as Director, it used to be one of the largest of its kind in Southeast Asia. It also boasted a science library that was larger than some of the scientific institutions and universities in the United States at that time. The prestige that the herbarium had became history when it was turned into ashes during World War II.

Immediately after the war, however, under the directorship of Dr. Eduardo Quisumbing, the collections of the PNH had once again been slowly built up when herbaria in Europe and the United States returned some of their duplicate holdings to form the core collection of the present PNH. The plant collections of the PNH are a result of collecting activities in the country in the last century as well as of the exchange programs with other herbaria here and abroad.

Some of the earliest collections dating back to the late 18th and 19th century are still being maintained here. Geology One of the primary functions of the Geology Division of the National Museum is to undergo basic and systematic studies on Petrology, Mineralogy and Paleontology with the aim of dissemination of knowledge and promotion of the growth of the natural science. It also aims to establish and maintain adequate reference collection of Philippine rocks, minerals and fossils through collection, exchange or donation.

Zoology The Philippine archipelago shelters an exceptional array of land and water animals, mostly found nowhere else.

American Museum of Natural History

The first known hominid settlements in the Nice area date back about , years; [9] the Terra Amata archeological site shows one of the earliest uses of fire, construction of houses, and flint findings dated to around , years ago. The city soon became one of the busiest trading ports on the Ligurian coast; but it had an important rival in the Roman town of Cemenelum [ citation needed ], which continued to exist as a separate city until the time of the Lombard invasions. The ruins of Cemenelum are in Cimiez , now a district of Nice.

Natural history room of the Horniman Museum. Image: Wikipedia commons/Simon and Ashley. I’d like to start by thanking GrrlScientist for inviting me to set out my thoughts on the relevance of.

Lowe Ho-Chunk Native Modernism: The Art of George Morrison and Allan Houser showcases magnificent paintings, drawings, and sculptures by two highly acclaimed artists. George Morrison Grand Portage Band of Chippewa, — and Allan Houser Warm Springs Chiricahua Apache, — shattered expectations for Native art and paved the way for successive generations to experiment with a wide array of styles and techniques.

In this ground-breaking, beautifully illustrated book, distinguished Native American writers and scholars Truman T. Trafzer Wyandot descent Native Universe complements the themes of the museum’s inaugural exhibitions and offers readers a new, deeper understanding of Native philosophies, histories, and identities. Specifications , copublished by NMAI and National Geographic Society pages; black and white and color illustrations 9 x 12 inches Members save: Trafzer Wyandot descent Native Universe explores the heritage, traditions, and history of Native American culture in unprecedented depth and rich detail.

This new, softcover edition includes the complete text of the original, with a new foreword by Kevin Gover Pawnee , director of the museum; a new afterword; and many new photographs.

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Ptarmigans on Top of the World Listen to this and other weekly articles as podcasts! Support them by donating at cablemuseum. Help others find them by rating them and commenting in your podcast app. Then the whump-whump-whump of a ruffed grouse drumming filled my chest. As young males leave their brood and seek a territory, established males reassert their claims, effectively telling the youngsters to move on. The sounds of grouse—even the startling ruckus they cause when flushing—are a quintessential part of the Northwoods.

But I wonder if they would sound odd to an outsider? This summer in Alaska I met some cousins of our ruffed grouse, and boy did they sound odd to this outsider!

London: Natural History Museum & Gift Shop

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