Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror

Comment Self inflicted damage (Score 3) 23

I wouldn't ever have considered anything other than VMware.. until now. Other products viable? Sure! But VMware is what I knew, and it's been good enough at a reasonable cost for what you got, so it was a self imposed lock-in.

Now? Since I'm small fish, I don't feel like a customer that they care about. I would absolutly look at what else is out there, and likely choose somehting else.

Anyway, I'm sure they're broke up about it.

Nintendo

Nintendo Announces Raft of New Games, 3DS Details 240

Nintendo gave a keynote presentation at E3 today, showing off a wealth of upcoming titles for the Wii, the DS, and the 3DS. Shigeru Miyamoto started things off by demonstrating Legend of Zelda: The Skyward Sword for the Wii, due out next year. While playing it, you hold the Wii Remote and Nunchuck like a sword and shield, and swing naturally at enemies. There's also a bow and arrow, a whip, and a flying bug you can control to go drop bombs on enemies. Nintendo also briefly showed an NBA Jam game, Golden Sun: Dark Dawn, and a new set of party games that uses the Wii Remote in unusual ways — for example, multiple players balancing it to disarm a bomb, or seeing which player can be the first to pick up the right controller from the table. Continuing on, they revealed GoldenEye 007, a long-awaited successor to the popular N64 game, due out this holiday season. It will feature split screen play, online multiplayer, and several different game modes. Next, Disney came out with a presentation on their upcoming Epic Mickey game. In it, Mickey can interact with the world using paint and paint-thinner, effectively adding onto or removing objects and characters. In addition to the 3D environment, there is also a part of the game that exists as a sidescrolling platformer, with levels based on classic cartoons. Read on for more about Metroid, Kid Icarus, Metal Gear Solid, and the 3DS.
Education

The Mindset of the Incoming College Freshmen 383

Beloit College has come out with its annual Mindset List of what the incoming class (of 2013) has always known and has never known. "For these students, ... the Green Giant has always been Shrek, not the big guy picking vegetables. They have never used a card catalog to find a book. ... Tattoos have always been very chic and highly visible. ... Rap music has always been mainstream. ... Except for the present incumbent, the President has never inhaled. ... Amateur radio operators have never needed to know Morse code."
Math

Miscalculation Invalidates LHC Safety Assurances 684

KentuckyFC writes "In a truly frightening study, physicists at the University of Oxford have identified a massive miscalculation that makes the LHC safety assurances more or less invalid (abstract). The focus of their work is not the safety of particle accelerators per se but the chances of any particular scientific argument being wrong. 'If the probability estimate given by an argument is dwarfed by the chance that the argument itself is flawed, then the estimate is suspect,' say the team. That has serious implications for the LHC, which some people worry could generate black holes that will swallow the planet. Nobody at CERN has put a figure on the chances of the LHC destroying the planet. One study simply said: 'there is no risk of any significance whatsoever from such black holes.' The danger is that this thinking could be entirely flawed, but what are the chances of this? The Oxford team say that roughly one in a thousand scientific papers have to be withdrawn because of errors but generously suppose that in particle physics, the rate is one in 10,000."
Earth

Black Holes From the LHC Could Last For Minutes 672

KentuckyFC writes "There is absolutely, positively, definitely no chance of the LHC destroying the planet (or this way either) when it eventually switches on some time later this year. And yet a few niggling doubts are persuading some scientists to run through their figures again. One potential method of destruction is that the LHC will create tiny black holes that could swallow everything in their path, including the planet. Various scientists have said this will not happen because the black holes would decay before they could do any damage. But physicists who have re-run the calculations now say that the mini black holes produced by the LHC could last for seconds, possibly minutes. Of course, the real question is whether they decay faster than they can grow. The new calculations suggest that the decay mechanism should win over and that the catastrophic growth of a black hole from the LHC 'does not seem possible' (abstract). But shouldn't we require better assurance than that?"

Comment Re:Iron Man's Suit Defies Physics -- Mostly (Score 2, Interesting) 279

Hydrogen peroxide powered rocket packs fly for around 30 seconds, because they have a specific impulse of around 125, meaning that one pound of propellant can make 125 pound-seconds of thrust, meaning that it takes about two pounds of propellant for every second you are in the air. Mass ratios are low for anything strapped to a human, so the exponential nature of the rocket equation can be safely ignored.

A pretty hot (both literally and figuratively) bipropellant rocket could manage about twice the specific impulse, and you could carry somewhat heavier tanks, but two minutes of flight on a rocket pack is probably about the upper limit with conventional propellants.

However, an actual jet pack that used atmospheric oxygen could have an Isp ten times higher, allowing theoretical flights of fifteen minutes or so. Here, it really is a matter of technical development, since jet engines have thrust to weight ratios too low to make it practical. There is movement on this technical front, but it will still take a while.

John Carmack

Slashdot Top Deals

Your fault -- core dumped

Working...