Catch up on stories from the past week (and beyond) at the Slashdot story archive


Forgot your password?
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. ×

Comment Re:Another new headphone connector! (Score 1) 139

Trust Apple not to implement that. Of course it requires an audio amplifier, probably a chip so small it's difficult to see. There's also some extra logic around the USB chip, because that's a relatively high-current low-impedance task. But Apple has already driven its users to a different solution, and has no reason to admit that analog headphones are just fine, and that it can support them.

Comment Not really private (Score 1) 333

It starts by abandoning NASA's expensive Space Launch System and Orion capsule, and spending the money saved on private-industry efforts like Elon Musk's SpaceX and Robert Bigelow's Bigelow Aerospace

I'm sure suddenly throwing a bunch more government money at private space efforts won't change those projects in the least or make them more expensive or anything like that.

Comment Re:Rockets are too expensive (Score 5, Interesting) 333

And a space elevator, of course, would only cost about a Trillion, and there's this little problem of it hitting something (we'd have to make Earth Orbit absolutely pristine and keep it that way) and there's a problem with the kinetic energy if it falls down. Sort of like having many atom bombs go off.

Maybe someday. But right now making rockets as cheap as they can be is a better idea. It's only $200K to fuel up a Falcon 9. We don't get the whole thing back in working order yet, but that would be a lot easier than making a space elevator.

Comment No Dragon 2 Soft Landing Yet (Score 5, Informative) 333

Dragon 2 isn't built yet. The escape test was a boilerplate capsule more like a Dragon 1 than 2. Dragon 2 has not demonstrated a soft landing, because it's not built yet. That was the Falcon 9 first stage.

Also, you can't get Dragon 2 down to the Moon and back up on it's own. Not enough delta-V. You would need to have Dragon ride on top of something that can hold enough fuel. Like a larger version of the Apollo Service Module.

The Command/Service module was originally intended to land on the moon and return without the LEM, before NASA bought the LEM concept, and was overpowered for the mission it got. Dragon is larger and heavier, but a lunar landing one would probably look a lot like an Apollo Command and Service module, and legs.

And yeah, Orion: I'm Not on Board. Big expensive obsolete rocket with no mission that makes sense.

But good luck getting Elon Musk to focus on the practical and eminently desirable target of the Moon. He isn't interested. It's only Mars for Elon.

I try not to watch all of the Mars Colonial Transport speculation. Falcon 9 and Dragon are great, and they're here, and we could do so much with them.

Comment Re:Weak/nonexistent punishments for faulty notices (Score 1) 82

All patent applications are signed under penalty of perjury. However, the US Patent and Trademark office disbanded its enforcement department in 1974. So, you can perjure yourself on a patent application with impunity.

Unless it's testimony in a criminal case, or the perjury trap in front of a grand jury, or something they want to prosecute like lying on your tax form, the Federal government is in general lassiez faire about perjury, or even encouraging of it with their reluctance to prosecute, especially perjury committed by a so-called intellectual property holder.

Comment Re:Likelihood by race (Score 1) 208

Playing with percentages can get easily confused which is what I suspect happened to you because your math is way off.


Percentages are handy for comparison, but can be easily confused or used to conflate facts.


... a white man is several times more likely to be shot by a black man, than the other way around

Thus, 1/1,046,032 whites was an interracial murderer. A black person statistically has to meet over 1M whites to run into an interracial murderer (whitey is pretty safe these days, apparently). ...1/92,176 blacks was an interracial murderer. A white person has to meet 92K random blacks to statistically meet an interracial murderer. ... 1/32,608 black men was an interracial murderer. Thus, any random young black man is 240% more likely to murder a white than any random white person is to murder another white person and any random young black man is 20,900% more likely to murder a black person than any random white person is to murder a black person.

You are simply reading the GPs text differently. It hinges on the meaning of the phrase "likely to be shot by a black man", where one can read that as either "likely, in the course of daily life, to be shot by a black man" (my interpretation) or "likely, upon seeing a young black man, to be shot by him" (your interpretation, and possibly the GPs).

Comment Re:ECC (Score 1) 264

No boot ROM means that a hardware device constructed from discrete logic and analog chips directly demodulates digital data from the radio, addresses the memory, and writes the data. Once this process is completed, it de-asserts the RESET line of the CPU and the CPU starts executing from an address in memory. Really no ROM!

Slashdot Top Deals