Want to read Slashdot from your mobile device? Point it at m.slashdot.org and keep reading!

 



Forgot your password?
typodupeerror
×

Comment High-tech "An armed society is a polite society" (Score 3, Interesting) 254

... from Robert Heinlein. In both cases, the consequences of rude behaviour are much greater.

I worry most about the years-later consequences of surveillence on politicians and other leaders. They all seem to have sordid episodes, and this leaves them highly succeptible to hidden blackmail/pressure by data-holders. We will never know how they are manipulated and abuse their wide discretionary powers.

Not to protect "the little children" but to protect "the pervy pols."

Comment Re:vs. a Falcon 9 (Score 1) 75

They can carry about 110kg to LEO, compared to the Falcon 9's 13150kg. That's 0.84% of the payload capacity. A launch is estimated to cost $4 900 000, compared to the Falcon 9's $61 200 000. That's 8.01%. That means cost per mass to orbit is nearly an order of magnitude worse.

Yes, this is a really small rocket. If you are a government or some other entity that needs to put something small in orbit right away, the USD$5 Million price might not deter you, even though you could potentially launch a lot of small satellites on a Falcon 9 for less.

And it's a missile affordable by most small countries, if your payload can handle the re-entry on its own. Uh-oh. :-)

Comment Doh! Natural Selection (Score 2, Interesting) 385

If high intelligence were an unmitigated benefit, natural selection would have moved the IQ average to 130, 150 or whatever over the eons. There _must_ be commensurate down-sides. Depression? Slower reflexes? Go fetch!

As it is, we just have the Flynn effect of average IQs rising about 1 pt per decade over the past century. That might [or not] be considered as fast evolutionary change.

Comment Re:I guess he crossed the wrong people (Score 1) 320

Your use of microbes in your argument is ironic since farmers are also a huge part of the problem of driving bacterial evolution for resistance through misuse of antibiotics.

Antivirals, antibiotics and pesticides should be used in the minimal amounts exactly where most needed. They should not be routinely used everywhere indiscriminately. That's the mode that these GMO crops are encouraging.

Comment Re:I guess he crossed the wrong people (Score 5, Insightful) 320

Making a plant manufacture its own insecticide is one thing. Modifying it so that it can withstand being soaked with ever-increasing quantities and varieties of synthetic pesticides is another.

Weeds are gradually evolving to resist this chemical onslaught. Most people would rather not have themselves subjected to such evolutionary pressure within their lifetimes.

The weeds are destined to eventually win this arms race anyway, so this huge experiment in chemical exposure to the US population is eventually going to be for naught.

Comment Re:You Can See (Score 1) 113

Microminiature accelerometers are really cheap and very very light, and you don't have to wait for them to spin up or deal with their mechanical issues. I doubt you will see a gyro used as a sensor any longer.

Similarly, computers make good active stabilization possible and steering your engine to stabilize is a lot lighter than having to add a big rotating mass.

Comment Re:New product (Score 1) 342

A video from the barge is now online here. If you step through the final frames, you can see that the camera mount ends up knocked over and pointing at the ocean, but the lens and its cover are unbroken and all we see flying appear to be small debris. So not a really high-pressure event.

Comment Re:incredibly close to target is far from success (Score 1) 342

It's very tempting to think this should work like an airplane. Lots of people wrote that it was "too hot", etc. But it isn't an airplane. The plan was really to approach at 1/4 Kilometer Per Second, then brake at the very last second.

Obviously Crew Dragon, which carries people, will approach differently. But it's a lot lighter.

Slashdot Top Deals

"A car is just a big purse on wheels." -- Johanna Reynolds

Working...