News articles tagged with 'diamond' (Page 4)
Exploding asteroid theory strengthened by new evidence located in Ohio and Indiana
— 3 Jul 2008 15:08 | Geology and palaeontologyGeological evidence found in Ohio and Indiana in recent weeks is strengthening the case to attribute what happened 12,900 years ago in North America - when the end of the last Ice Age…
Life may have existed 4.25 billion years ago
— 3 Jul 2008 11:41 | Geology and palaeontologyDid life on earth begin earlier than we have hitherto believed? While examining the oldest diamonds in the world, a group of researchers, including Martina Menneken and Dr Thorsten…
Engineers reveal what makes diamonds slippery at the nanoscale
— 26 Jun 2008 19:18 | PhysicsThey call diamonds 'ice,' and not just because they sparkle. Engineers and physicists have long studied diamond because even though the material is as hard as an ice ball to the head,…
Diamonds reveal deep source of platinum deposits
— 11 Jun 2008 17:00 | Geology and palaeontologyThe world's richest source of platinum and related metals is an enigmatic geological structure in South Africa known as the Bushveld Complex. This complex of ancient magmas is known…
Spitzer's eyes perfect for spotting diamonds in the sky
— 27 Feb 2008 18:00 | AstronomyDiamonds may be rare on Earth, but surprisingly common in space - and the super-sensitive infrared eyes of NASA's Spitzer Space Telescope are perfect for scouting them, say scientists…
The Hope Diamond phosphoresces a fiery red colour
— 12 Jan 2008 19:12 | Geology and palaeontologyA study released in the January 2008 edition of the journal Geology proves that a blue diamond's rare appeal goes far beyond its beauty. The study was conducted by Jeffrey Post, curator…
Phosphorescence of the Hope Diamond key to fingerprinting
— 8 Jan 2008 15:35 | Geology and palaeontologyShine a white light on the Hope Diamond and it will dazzle you with the brilliance of an amazing blue diamond. Shine an ultraviolet light on the Hope Diamond and the gem will glow red-orange…
Scientists use unique diamond anvils to view oxide glass structures under pressure
— 9 Nov 2007 17:06 | PhysicsResearchers at the U.S. Department of Energy's Argonne National Laboratory have used a uniquely-constructed perforated diamond cell to investigate oxide glass structures at high pressures…
Heavier hydrogen on the atomic scale reduces friction
— 3 Nov 2007 03:50 | PhysicsScientists may be one step closer to understanding the atomic forces that cause friction, thanks to a recently published study by researchers from the University of Pennsylvania, the…
Circumstellar space: Where chemistry happens for the very first time
— 1 Aug 2007 16:39 | AstronomyPicture a cool place, teeming with a multitude of hot bodies twirling about in rapidly changing formations of singles and couples, partners and groups, constantly dissolving and reforming.…