February 11, 2011
The mammalian diving reflex optimizes respiration to allow mammals to stay underwater for a long time. It is exhibited strongly in aquatic mammals (seals, otters, dolphins, etc.), but exists in a weaker version in other mammals, including humans. Diving birds, such as penguins, have a similar reflex. Every animal’s diving reflex is triggered specifically by cold water contacting the face – water that is warmer than 21 °C (70 °F) does not cause the reflex, and neither does submersion of body parts other than the face.
Also, the reflex is always exhibited more dramatically, and thus can grant longer survival, in young individuals. Beyond the effect of the reflex when submerged in water, the reflex is used consciously in ‘splashing cold water on one’s face,’ either to relax when upset or wake up when drowsy. Additionally, the reflex is also elicited through water boarding torture, in order to create the sense of drowning upon the individual.
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February 11, 2011
In ballet, a pas de deux [pahduh due] (French, steps of two) is a duet in which ballet dancers perform the dance together. It usually consists of an entrée (introduction), adagio (a slow portion), two variations (one for each dancer), and a coda (literally ‘tail’). The coda is a passage which brings a movement or a separate piece to a conclusion. In ballet, the coda is usually the ‘Finale,’ a set of dances known as the Grand Pas or Grand Pas d’action and brings almost all the dancers onto the stage. A particularly large or complex coda may be called a coda Grande.
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February 11, 2011
Chemex Coffeemaker, a famous coffee-making device, was introduced by the Chemex Corporation of Pittsfield, Mass. in the 1940s. It consists of a single hourglass-shaped vessel and is used to make coffee. It was invented by industrial chemist, Peter Schlumbohm; the New York Times in its obituary of Schlumbohm called the device ‘one of 100 best modern devices.’
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February 11, 2011
Omni wheels (or poly wheels) are wheels with small discs around the circumference which are perpendicular to the rolling direction. The effect is that the wheel will roll with full force, but will also slide laterally with great ease. These wheels are often employed in holonomic drive systems (those with ability to move in all direction and rotate independently). Although omniwheels are capable of movement in many directions, they are not true omni-directional wheels, a classification reserved for spherical wheels such as ball transfer units.
A platform employing three omni wheels in a triangular configuration is generally called Kiwi Drive. The Killough platform is similar; so named after Stephen Killough’s work with omnidirectional platforms at Oak Ridge National Laboratory. They are often used in small robots. In leagues such as Robocup, many robots use these wheels to have the ability to move in all directions. Omniwheels combined with conventional wheels provide interesting performance properties, such as on a six wheel vehicle employing two conventional wheels on a center axle and four omniwheels on front and rear axles.
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February 11, 2011
The Mecanum wheel is one design for a wheel which can move in any direction. It is sometimes called the Ilon wheel after its Swedish inventor, Bengt Ilon, who came up with the idea in 1973 when he was an engineer with the Swedish company Mecanum AB. It is a conventional wheel with a series of rollers attached to its circumference. As well as moving forward and backward like conventional wheels, they allow sideways movement by spinning wheels on the front and rear axles in opposite directions.
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February 11, 2011
The Parrot AR.Drone is a RC quadricopter with cameras attached to it built by French wireless products manufacturer Parrot. It is designed to be controllable with an iPhone, iPad, or an iPod Touch. Parrot demos the device with 2 games, a virtual combat called ‘DRONE WAR’ with solo and multiplayer mode and a ‘ROBOT’ solo game demo against a virtual Robot. Parrot has launched ARdrone.org Open API game development platform, to gather game studios and developers. It sells for around $300 on Amazon.com.
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February 10, 2011
Jenkem is an alleged hallucinogenic recreational drug composed of noxious gas formed from fermented sewage. In the mid to late 1990s, several reports stated that Jenkem was being used by Zambian street children. The surfacing of the drug, or rumors of its existence, has caused at least one US municipality to amend its city ordinance regarding substances that cannot be legally inhaled to include organic substances.
Posted in Drugs, Humor |
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February 9, 2011
Between Two Ferns With Zach Galifianakis is an interview series on Funny or Die hosted by Zach Galifianakis. Zach conducts interviews with popular celebrities between two potted ferns. The show is filmed to resemble a low-budget amateur production fit for public access television. He maintains an awkward and sometimes antagonistic demeanor with his guests, asking them bizarre and inappropriate questions mixed with off-handed non sequiturs.
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February 9, 2011
A bat phone, in business jargon, is a private telephone number that is handled at a higher priority than a public line. The name derives from Commissioner Gordon’s secure line to the ‘Batphone’ in the Batman television show of 1966–68. Bat phones are common in many industries. The phone numbers are typically given to key customers so that they may reach important individuals in case of emergencies or critical situations. Bat phones can also provide direct access to politicians or notable people.
Another example of their use is for Internet service providers offering a selection of Internet services that range from dial-up access to secure web server hosting. Customers using the secure web hosting facility would be given access to a 24-hour bat phone for prompt resolution of technical issues, while dialup customers seeking technical support would be required to wait on hold and/or call only during business hours.
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February 8, 2011
A tourbillon [tor-bee-yon] (French for ‘whirlwind’) is an addition to the mechanics of a watch escapement (the device which converts continuous rotational motion into an oscillating or back and forth motion; the source of the ‘ticking’ sound produced by watches and clocks).
Developed around 1795 by the French – Swiss watchmaker Abraham-Louis Breguet from an earlier idea by the English chronometer maker John Arnold a tourbillon counters the effects of gravity by mounting the escapement and balance wheel in a rotating cage. Originally an attempt to improve accuracy, tourbillons are still included in some expensive modern watches as a novelty and demonstration of watchmaking virtuosity. The mechanism is usually exposed for display on the watch’s face.
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February 8, 2011
Schutzhund (German for protection dog) is a dog sport that was developed in Germany in the early 1900s to test whether German Shepherd Dogs exhibit the traits necessary for police-type work, rather than simply evaluating a dog’s appearance. Today, many breeds other than German Shepherds can compete in Schutzhund, but it is a demanding test for any dog and few are able to pass successfully.
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February 8, 2011
Bo Burnham (b. 1990) is an American comedian and musician. He performs satirical songs with a politically incorrect slant, and rose to fame on YouTube.
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