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Tuesday, January 03, 2012
新大學物理(一)_物理發展與物理量簡介
描述加利略的一些實驗觀察以其發現之力學行為,探討物理在研究什麼?講解一些基本的單位及向量概念。
Monday, January 02, 2012
Viral Video: 15-Year-Old Korean Girl Channels Adele
If you’re impressed by British singer Adele, you’ll be wowed by this 15-year-old girl covering her hit, “Rolling in the Deep,” on Korean singing show, “K-Pop Star.”
I was definitely not expecting this from the slight, sweet-looking singer:
Adele - Rolling In The Deep (Live)
I was definitely not expecting this from the slight, sweet-looking singer:
Adele - Rolling In The Deep (Live)
Sunday, January 01, 2012
Friday, December 30, 2011
Thursday, December 29, 2011
Wednesday, December 28, 2011
Video: Japan Gets Vending Machine 2.0 With See-Through Full HD Display, Facial Recognition
Maker Sanden says the machine’s display can produce text, pictures or animations in HD quality.
The company commands a 30% global market share for vending machines and is also active in the US, meaning this prototype could also make its way over to North America one day.
Tuesday, December 27, 2011
Friday, December 23, 2011
Thursday, December 22, 2011
02 pursuit motorcycle
MELBOURNE — Last month industrial designer Dean Benstead unveiled the 02 Pursuit — a prototype for a motorcycle fueled not by gas or electricity, but by compressed air.
Based on the geometry of a 250cc motocrosser, the O2 Pursuit prototype uses the breakthrough engine technology developed by Angelo Di Pietro of Engineair.
Benstead, a recent graduate of the Royal Melbourne Institute of Technology (RMIT), has harnessed the power that exists in the air tanks to mechanically drive the vehicle.
According to Benstead, testing of the motorcycle showed close to a quarter of an hour running time with stops at around 25-45 km/h. During stationary testing, Benstead’s team timed the speed off the back wheel, registering over 100 km/h. Preliminary testing of the prototype was limited to an indoors factory environment on a circular track.
“The bike is running a standard scuba tank which runs air compressed up to 200 bar, with further developments, we would be looking at running a tank at 400 bar with increased capacity to also increase the range,” he said.
The innovation was the result of Benstead’s final-year design research into the future of motorcycles, looking at air as a genuine alternative to petrol and electricity.
“Air was the starting point back in 2010, but I continued to explore this for the prototype because of its low-tech nature,” Benstead said. “A solar panel and a compressor now becomes your refinery and without huge battery packs to dispose of, we now have a low-cost to free powered bike with minimum impact on the environment.”
The project began mid last year at the RMIT Ecomoto, the only motorcycle-specific design studio in Australia. Led by RMIT Lecturer and Acting Program Director Simon Curtis, Benstead’s super motard bike project won him the Product Design – Automotive and Transport award at the 2010 Melbourne Design Awards.
The air engine developed by Engineair is still yet to be commercialized. The motor used in the 02 Pursuit was one of five prototypes in the world.
Benstead, recently named in Melbourne’s Top 100 most influential people, is currently working with Australia’s Engineair on a new design that can bring the technology to the market.
02 Pursuit specs:
Top Speed: >100 km/h
Weight: <100kg
Engine: ‘Di Pietro’ 9 chamber air engine
Engine Weight: 10kg
Material: Aluminiumhttp://www.blogger.com/img/blank.gif
Development: Melbourne
http://www.engineair.com.au/
Wednesday, December 21, 2011
Brad Burnham Explains Why SOPA Must Be Stopped
The Congressional Judiciary committee is debating a bill today called the Stop Online Piracy Act (SOPA) which nobody in the Internet industry wants to see passed. Not surprisingly, the bill was written by lobbyists for the music and movie industries, who are frustrated by their inability to go after foreign sites filled with pirated material. The piracy problem is real, but the proposed solutions in the form of this bill and the Senate’s corresponding Protect-IP Act (PIPA) will create more problems than they solve.
Brad Burnham, a managing partner at Union Square Ventures, came into the TCTV studio in New York City to explain why SOPA is misguided and how it threatens to break the internet. There are many problems with SOPA, but some of the main ones are that it transfers liability for copyright infringement onto second parties like search engines, social networks, blogs, and all sorts of websites. It provides for DNS blocking much in the same way that China’s great firewall blocks foreign sites it does not want its citizens to see, raising a serious censorship issue since it would not take a court order to block these sites (although it is more complicated than a simple takedown notice).
But more than anything, the bill would inject a level of uncertainty into the internet which could chill the willingness of VCs like Burnham to invest as freely as they have and for founders to start internet companies in the first place. The internet is one of the few sources of job creation in the U.S. economy right now. We don’t need laws that will stifle it.
If you want to learn more about SOPA, read this excellent overview by Mike Masnick at TechDirt. Call your Congress person or let them know that you work for the internet.
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