Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror

Comment Re:Not so fast (Score 2) 140

To elaborate on tsotha's explanation that "Hydrogen only burns in the presence of oxygen": an explosion requires a nice mix of something flammable and oxygen. If the mixture isn't of the right proportions, no explosion. If the flammable molecules and the oxygen molecules are not nicely mixed, no explosion. Drop a match in a bucket of gasoline: no explosion. Throw the bucket of gasoline into the air and walk into the mist with a lit match: big explosion.
Hydrogen does have a high flame speed. So a better choice for lifting gas might be methane - super abundant and cheap, albeit with half the bouyant force of hydrogen.
The potential explosiveness in a fully fueled 747 likely exceeds that of the R100.
I'm too lazy to look it up, but I suspect the majority of deaths in the Hindenburg accident were from falling or choosing to jump or poorly designed escape routes.
Media

Roku Finally Gets a 2D Menu System 80

DeviceGuru writes "Many of us have griped for years about Roku's retro one-dimensional user interface. Finally, in conjunction with the release of the new Roku 3 model, the Linux-based media streaming player is getting a two-dimensional facelift, making it quicker and easier to access favorite channels and find new ones. Current Roku users, who will now begin suffering from UI-envy, will be glad to learn that Roku plans to push out a firmware update next month to many earlier models, including the Roku LT, Roku HD (model 2500R), Roku 2 HD, Roku 2 XD, Roku 2 XS, and Roku Streaming Stick. A short demo of the new 2D Roku menu system is available in this YouTube video."
The Military

United States Begins Flying Stealth Bombers Over South Korea 567

skade88 writes "The New York Times is reporting that the United States has started flying B-2 stealth bomber runs over South Korea as a show of force to North Korea. The bombers flew 6,500 miles to bomb a South Korean island with mock explosives. Earlier this month the U.S. Military ran mock B-52 bombing runs over the same South Korean island. The U.S. military says it shows that it can execute precision bombing runs at will with little notice needed. The U.S. also reaffirmed their commitment to protecting its allies in the region. The North Koreans have been making threats to turn South Korea into a sea of fire. North Korea has also made threats claiming they will nuke the United States' mainland."

Comment Re:I bought a couple... (Score 1) 81

What sort of hard drive is connected to your fileserver? I'm thinking of doing this, but wonder about the reliability of a consumer-grade external USB connected drive. You're unlikely to lose data, but won't the USB-SATA interface cook itself if left on forever?

Comment Re:Really? (Score 2) 257

... onion has no nutritional label, so you can't use OCR...

Shake the phone. App measures momentum. Hold onion in same hand as phone. App measures momentum. Determine mass of onion. Take picture of onion. App determines that onion is onion. Cut off portion of onion and eat it. Shake remaining onion plus phone again. Subtract, and log portion of onion eaten. Profit!

Slashdot Top Deals

Doubt isn't the opposite of faith; it is an element of faith. - Paul Tillich, German theologian and historian

Working...