Clock Full of Insects
These clocks often employ a pendulum that swings from side to side in a one-second arc, producing the familiar tick-tock sound. Early clocks displayed the time on the face of the clock. The face consisted of two hands and a circle partitioned into 12 ...
March 27, 2015
Dot on the Map: Nashville church members care about history
The doors are kept open 24 hours a day, seven days a week. A Regulator clock quietly ticks on the wall of the sanctuary, its swinging pendulum tracking the passage of church members' lives. Until recently, each December they cut a 15-foot pine tree ...
November 24, 2014
Bibi Netanyahu and the Myth of the 'Special Relationship'
"The outrage the episode has incited within President Obama's inner circle became clear in unusually sharp criticism by a senior administration official who said that the Israeli ambassador, Ron Dermer, who helped orchestrate the invitation, had ...
January 31, 2015
Slidecast: John Gustafson Explains Energy Efficient Unum Computing
In the next slide, we've got a table about not enough bandwidth – the memory wall. This is .. It's a lot of clock delays too. And that's just half precision, but it's 30 times less energy and space on the chip to do it for an expanded unum here ...
March 2, 2015
Two photons strongly coupled by glass fiber
There cannot be a more extreme change in the pendulum's oscillation", says Rauschenbeutel. An ultra-thin glass fibre is coupled to a tiny bottle-like light resonator so that light can partly enter the resonator, move in circles and return to the ...
November 2, 2014
Triumph of the Innovation Economy – Part 3
What does a mysterious discovery in a sunken wreck off the Greek island of Antikythera tell us about the innovation power of classical antiquity? Could it be the world's oldest “computer”? If so, what else were the Greeks and Romans capable of?...
January 22, 2015
Ted Grant - The Permanent Revolutionary. Chapter Nine: How Militant Was ...
The pendulum began to swing to the right. These were the years of Reagan and The Conservative Party was run by a narrow circle of unelected Tory grandees, all aristocrats. The bourgeois provided the . Nevertheless, the MIR came out every quarter ...
October 24, 2014
Today we know the clepsydra as water clocks and clepsammia as hourglasses. We named such devices clocks. The word clock is derived from ancient words that generally referred to bells. True to their name, early clocks often used bells to acoustically announce points in time. The mechanical mechanism of early clocks consisted of springs and wheels and some sort of oscillating, counter-balancing system. That is how those tall clocks we call grandfather clocks work. These clocks often employ a pendulum that swings from side to side in a one-second arc, producing the familiar tick-tock sound. Early clocks displayed the time on the face of the clock. In ancient times, 12 was the number of Biblical tribes of Israel and the number of animals on the Chinese calendar. A clock with 12 divisions not only represented a historical and somewhat magical number but also approximated.
But sunshine and blue skies make it perfect for Patrick Goodknight to arrive at the white wooden Nashville United Methodist Church in his 100-year-old spring wagon, pulled by a team of horses from his farm six miles away, and tie them to a tree. The doors are kept open 24 hours a day, seven days a week. A Regulator clock quietly ticks on the wall of the sanctuary, its swinging pendulum tracking the passage of church members’ lives. “It’s a piece of America that’s going away,” said 21-year-old Evan Belt, who has grown up attending the historic church. Donita James, who lives a half-mile away, credited her great-great-grandfather, Judge John Main, with its beginnings. That was the winter of 1886 — not a time of year that’s ripe for such projects, particularly in that day and age, Goodknight noted. Would-be congregation members hauled the lumber from Fort Scott, Kansas, and Carthage in wooden wheeled wagons at a cost of $2,500, according to church records reviewed by Mason. “That was a fortune in those days,” he said. “People then didn’t make $50 to $100 a year. The congregation had no electricity, no heat source in those early years, but members were determined. It was work to get there,” said Goodknight, whose team and wagon took an hour to get there. People didn’t have to get home to watch football on TV. The church was central.
Written by one of the foremost experts in high-performance computing and the inventor of Gustafson’s Law, The End of Error: Unum Computing explains a new approach to computer arithmetic: the universal number (unum). The unum encompasses all IEEE floating-point formats as well as fixed-point and exact integer arithmetic. This new number type obtains more accurate answers than floating-point arithmetic yet uses fewer bits in many cases, saving memory, bandwidth, energy, and power. John Gustafson: I’m going to talk about a new way to do computation on computers – any numeric computation – that is more energy efficient and gets much better answers, which is, I think, what we really most need right now. I think you and I have been talking about this for a couple of years, and I remember at the time when we first brought it up that you weren’t able to break it at the time. I was always trying to fix all the traditional problems with things like interval arithmetic that promise that they were going to get valid answers and guaranteed answers, and you won’t have to know numerical analysis anymore, and they just didn’t... Everything had something wrong with it. Everything had a gotcha. And I finally found one that didn’t have any gotchas and that’s when I got so excited. You came up with this new method and then you had to go through that whole authoring process, didn’t you. CRC Press consented to do the book and they did it in 400 pages of full color, which is very generous of them, so I was able to use a lot of color illustrations to make the points clear.