Herbert Cole H.C. "Nugget" Coombs (24 February 1906 – 29 October 1997) was an Australian economist and public servant.

Early years

Coombs was born in Kalamunda, Western Australia, Australia, one of six children of a country railway station-master and a well-read mother.

Coombs's political and economic views were formed by the Great Depression, which hit Australia in 1929 and caused a complete economic collapse in a country totally dependent on commodity exports for its prosperity. As a student in Perth, he was a socialist, but while he was studying at the London School of Economics, he became converted to the economic views of John Maynard Keynes. He spent the rest of his career pursuing Keynesian solutions to Australia's economic problems. He never sought public office or joined a political party, but he sought to exercise political influence from within as an administrator and advisor.

He won a scholarship to Perth Modern School, where Bob Hawke was also educated. After five years there, he worked as a pupil-teacher for a year before spending two years at the Teachers' College. He then spent two years teaching at country schools, during which he studied for a Bachelor of Arts degree in the University of Western Australia (UWA), then the only free only university in Australia. Transferring to a metropolitan school for the final two years, he graduated B.A. with first-class honours in economics and won a Hackett Studentship for overseas study. That was deferred for a year, enabling him to graduate M.A., also from UWA, and to marry fellow teacher Mary Alice ('Lallie') Ross at the end of 1931. As a student at UWA, Coombs was elected as the 1930 Sports Council President and subsequently the 1931 President of the Guild of Undergraduates. He then proceeded to the London School of Economics, where he studied under Harold Laski, one of the most influential Marxists of the 20th century. In 1933, he was awarded a PhD for a thesis on central banking.

Coordinates: 38°43′58″N 48°35′30″E / 38.73278°N 48.59167°E / 38.73278; 48.59167

Hücü (also, Hüzü, Gidzhu, and Gudzhu) is a village in the Lerik Rayon of Azerbaijan.

References

General use

Computers

Mathematics and quantum mechanics

Schools

Music

Fashion

Sports

Medicine

Hunters & Collectors are an Australian rock music band formed in 1981. Fronted by founding mainstay, singer-songwriter and guitarist Mark Seymour, they developed a blend of pub rock and art-funk. Other mainstays are John Archer on bass guitar, Doug Falconer on drums and percussion. Soon after forming they were joined by Jack Howard on trumpet and keyboards, Jeremy Smith on French horn, guitars and keyboards, and Michael Waters on trombone and keyboards. Also acknowledged as a founder was engineer and art designer Robert Miles. Joining in 1988, Barry Palmer, on lead guitar, remained until they disbanded in 1998. The group reformed in 2013 with the 1998 line-up.

Originally Hunters & Collectors were influenced by Krautrock and productions of Conny Plank, featuring strong percussive influences, noisy guitar, and driving bass lines. Their sound was in the vein of the Talking Heads album, Remain in Light (1980). Hunters & Collectors utilised Plank to produce two of their early albums, The Fireman's Curse (1983) and The Jaws of Life (1984), but neither charted into the Top 50 of the Australian Kent Music Report Albums Chart. Their first Top 10 album, Human Frailty (1986), also featured their logo, a H & C symbol, where the "&" consists of twin snakes entwined around a hunting knife, a variation of a caduceus. Later Top 10 studio albums were Ghost Nation (1989), Cut (1992), and Demon Flower (1994). Their hit singles were "Talking to a Stranger" (1982), "Throw Your Arms Around Me" (1984), "Say Goodbye" (1986), "When the River Runs Dry" (1989), "True Tears of Joy" (1992), and "Holy Grail" (1993). They became one of the best live acts in Australia and according to musicologist, Ian McFarlane, their "great achievement was to lay bare human emotions in the intensely ritualistic milieu of the pub-rock gig".

H₂Ceramic cooling (also called H₂C or Hot-to-Cold) is a computer cooling product offered as an option in Dell's XPS gaming systems, advertised specifically as facilitating CPU overclocking. H₂C is a two-stage Liquid/Thermoelectric (TEC) hybrid cooling system that combines a liquid-to-air heat exchanger (much like a liquid radiator), a thermoelectric fluid chiller, and control circuitry to optimize CPU cooling with minimal power.

The components are delivered as a single unit designed to last a minimum of 5 years without service or liquid refilling. The XPS 710 H₂C and Dell XPS 720 H₂C featured a design where all components were mounted in a single plastic chassis and which only cooled the CPU. This design only matched motherboards with a very specific CPU socket location and was later replaced by a new and more flexible design featuring a separate pump unit which made it much easier to fit a broader range of motherboards with different CPU socket locations. The new design allowed the unit to cool the motherboard chipset as well.

Endohedral hydrogen fullerene (H₂@C₆₀) is an endohedral fullerene containing molecular hydrogen. This chemical compound has a potential application in molecular electronics and was synthesized in 2005 at Kyoto University by the group of Koichi Komatsu. Ordinarily the payload of endohedral fullerenes are inserted at the time of the synthesis of the fullerene itself or is introduced to the fullerene at very low yields at high temperatures and high pressure. This particular fullerene was synthesised in an unusual way in three steps starting from pristine C₆₀ fullerene: cracking open the carbon framework, insert hydrogen gas and zipping up by organic synthesis methods.

Organic synthesis

Scheme 1 presents an overview of the first step, the creation of a 13 membered ring orifice on the fullerene surface. A 1,2,4-triazine 2 is fitted with two phenyl groups and a pyridine group for reasons of solubility and reacted in 1,2-dichlorobenzene with pristine C₆₀ fullerene 2 in a Diels-Alder reaction at high temperature and for an extended reaction time. In this reaction nitrogen is expulsed and an 8-membered ring is formed (3). This orifice is further extended by reaction with singlet oxygen in carbon tetrachloride which causes one of the ring alkene groups to oxidize to a ketone. The 12-ring is extended to a 13-ring by reaction with elemental sulfur in presence of tetrakis(dimethylamino)ethylene.

Acetylene (systematic name: ethyne) is the chemical compound with the formula C₂H₂. It is a hydrocarbon and the simplest alkyne. This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. Pure acetylene is odorless, but commercial grades usually have a marked odor due to impurities.

As an alkyne, acetylene is unsaturated because its two carbon atoms are bonded together in a triple bond. The carbon–carbon triple bond places all four atoms in the same straight line, with CCH bond angles of 180°.

Discovery

Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen". It was rediscovered in 1860 by French chemist Marcellin Berthelot, who coined the name "acetylene". Berthelot was able to prepare this gas by passing vapours of organic compounds (methanol, ethanol, etc.) through a red-hot tube and collecting the effluent. He also found acetylene was formed by sparking electricity through mixed cyanogen and hydrogen gases. Berthelot later obtained acetylene directly by passing hydrogen between the poles of a carbon arc. Commercially available acetylene gas could smell foul due to the common impurities hydrogen sulphide and phosphine. However, acetylene gas with high purity would generate a light and sweet smell.