Friday, October 31, 2008
Thursday, October 30, 2008
Tuesday, October 28, 2008
Monday, October 27, 2008
Sunday, October 26, 2008
Most experimental television systems in the 1920s and 1930s made use of an electromechanical system, usually a Nipkow disk combined with a single photoelectric cell for scanning an image and creating an electrical output. A similar device operating in reverse was used to project the image onto the picture screen. [wiki]
The Iconoscope invented by Vladimir Zworykin improved on Farnsworth's invention by combining the photosensitive material at each point with a capacitor so that all the electrons were captured. A separate beam of electrons was then used to scan over the image surface, resulting in an electrical current proportional to the quantity of stored electrons at each point.
The key aspect of the Iconoscope was that the image-sensitive target integrated, or collected the charge developed by the light hitting it between readout scans. [wiki]
The iconoscope was the primary camera tube used in American broadcasting from 1936 until 1946, when it was replaced by the image orthicon tube.
The image orthicon tube (often abbreviated as IO) was common until the 1960s. A combination of Farnsworth's image dissector and RCA's orthicon technologies, it replaced the iconoscope/orthicon, which required a great deal of light to work adequately.
While the iconoscope and the intermediate orthicon used capacitance between a multitude of small but discrete light sensitive collectors and an isolated signal plate for reading video information, the IO employed direct charge readings from a continuous electronically charged collector. The resultant signal was immune to most extraneous signal "crosstalk" from other parts of the target, and could yield extremely detailed images. For instance, IO cameras were used for capturing Apollo/Saturn rockets nearing orbit long after the networks had phased them out, as only they could provide sufficient detail.
Mercury imaged by the mariner 10 spacecraft using a vidicon.
Saturday, October 25, 2008
Friday, October 24, 2008
Thursday, October 23, 2008
Targeted memory erasure is no longer limited to the realm of science fiction. A new study describes a method through which a selected set of memories can be rapidly and specifically erased from the mouse brain in a controlled and inducible manner. New and old memories have been selectively and safely removed from mice by scientists. [...] Much as a war veteran remembers a fateful patrol when he was fired upon, mice can establish a very long-lasting emotional memory about a place if, for example, they receive a mild shock to the paws while there. The researchers showed if they over-expressed αCaMKII, this powerful memory was rapidly erased as the animals tried to retrieve them while other memories remained intact. A similar approach was taken with object recognition memory, giving mice a couple of toys to play with then erasing their memory of one of them. "You will feel like every time, it's a new toy," says Dr. Tsien. Full Article...Quite scary that this is possible. Though it has uses for traumatic memories it could also be misused. And what if you use it and remember the wrong memory, bye bye memory.
Tuesday, October 21, 2008
Sunday, October 19, 2008
Saturday, October 18, 2008
Friday, October 17, 2008
Thursday, October 16, 2008
Wednesday, October 15, 2008
Tuesday, October 14, 2008
A lot have asked me, why create so many? The main reason is to invade Stormwind and Ironforge when they reach top level. I'm sure the Alliance will put up a big fight when that happens. We'll see how it goes. If they don't make level 70 before Wrath of the Lich King, then it will be at level 80. That is my main goal. That will probably happen after I've got some PvP gear from the battlegrounds. I'm also planning to do some 25 and 10 man raid instances but that is secondary to my PvP goal. Of course I'll be doing arenas too to build up PvP gear but I'm not expecting to do that great there because I'm way behind in gear right now. I need to get to level 70 first, then level 80 and by then I will probably have all green gear while most others have been doing the battlegrounds and arenas. It costs me exactly $5711 in subscription costs per year with 36 accounts on the 6 month pay schedule. Not bad considering I'm looking at it like it's a hobby and there are more expensive hobbies out there than World of Warcraft. :) 32 of my shaman are level 61. One shaman that I had before I started the 32 is at level 70 along with 8 other level 70 classes that I had. My mage, priest and druid are in the center of the circle of shaman in the pictures but they are kind of hard to see. I've also got some mages and priests that I'm currently working on that are level 23. Once they are at level 31.9, I will stop working on them, get 16 of them to level 60 with the recruit-a-friend bonus levels and work on the shaman again. When Wrath of the Lich King is released, I plan to be at the store when it opens and will purchase 36 copies of it. With tax, it should be about $1500 for all of them. Then the shaman are on their way to level 80 along with the priest, druid and mage.This guy uses a technique called multi-boxing to play all these accounts simultaneously. This tutorial kind of explains it. This guy is to nerds what nerds are to normal people.
Monday, October 13, 2008
Sunday, October 12, 2008
Saturday, October 11, 2008
Friday, October 10, 2008
Thursday, October 09, 2008
Dubai: UAE development company Tameer Holding will develop the world’s largest LED screen to be embedded on an intended commercial tower in the Majan district of Dubailand, the company announced on Monday. Termed ‘Podium’, the development will be a world first, boasting a 33-storey high LED media facade that will be visible from a distance of 1.5 kilometres.full article here