guardiantech + physics   4

Theoretical physicist explains why Moore's Law will collapse >> Geek.com
Moore’s Law has been around since 1965 when Intel co-founder Gordon E. Moore described it in a paper. Since that day, the law has been in full effect, and the number of transistors placed inexpensively on an integrated circuit has roughly doubled every two years. It’s also a commonly held belief that chip performance doubles every 18 months.</p><p>

But Moore’s Law won’t be true forever, and in this video theoretical physicist Michio Kaku explains how it will collapse. And that collapse isn’t going to happen in some distant future, it is going to happen within the next decade.


We feel like we've been hearing this for a decade, though. How many times has Moore's Law been declared dead?
mooreslaw  physics 
29 days ago by guardiantech
Carriers Warn of Crisis in Mobile Spectrum >> NYTimes.com
The wireless carriers say that in the next few years they may not have enough of it to meet the exploding demands for mobile data. The result, they ominously warn, may be slower or spotty connections on smartphones and tablets. They imply in carefully couched language that, given the laws of supply and demand, the price of cellphone service will soar.</p><p>

It will affect “the services they’re paying for because of the capacity issues,” said Ed McFadden, Verizon’s vice president for policy communications. “It potentially hinders our ability to meet consumer need.”</p><p>

But is there really a crisis? Some scientists and engineers say the companies are playing a game that is more about protecting their businesses from competitors.


To which one scientist retorts that their complaints are more like suggesting you'll run out of a colour: the finite spectrum idea dates to the 1920s, but there are much more effective ways of using spectrum.
mobile  wireless  spectrum  physics 
5 weeks ago by guardiantech
Vector math basics to animate a bouncing ball in JavaScript >> bassistance.de
"Vector math is pretty much essential when you want to do any kind of physics simulation, be it as simple as a bouncing ball. While my goal originally was to implement a flocking simulation (like birds flying close to each other, but not too close), the lack of math skills led me to build a bouncing ball simulation first."

You never know when this will come in useful.
javascript  physics  css  maths  tutorial  from delicious
december 2011 by guardiantech

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