Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror

Comment: And the lesson is... (Score 1) 257

... email, and anything else you do on the internet or with your cell is not private.

Never put anything in email, or text messages, or twitter or random internet forums that could potentially embarrass you or anyone you care about.

Sad that this needs to be pointed out, but clearly it does.

Comment: Re:Wildly premature question (Score 1) 81

by Bruce Perens (#48620117) Attached to: SpaceX To Attempt Falcon 9 Landing On Autonomous Spaceport Drone Ship

If we look at jet aircraft, wear depends on the airframe and the engines, and the airframe seems to be the number of pressurize/depressurize cycles as well as the running hours. Engines get swapped out routinely but when the airframe has enough stress it's time to retire the aircraft lest it suffer catastrophic failure. Rockets are different in scale (much greater stresses) but we can expect the failure points due to age to be those two, with the addition of one main rocket-specific failure point: cryogenic tanks.

How long each will be reliable can be established using ground-based environmental testing. Nobody has the numbers for Falcon 9R yet.

Weight vs. reusable life will become a design decision in rocket design.

Comment: Re:Sorry, but how? (Score 1) 175

by H0p313ss (#48618797) Attached to: Army To Launch Spy Blimp Over Maryland

How is the army allowed to do this on american soil...?

How do you provide military radar coverage of domestic airspace without putting military radar installations in domestic territory.

If I throw the word NORAD up in the air will it stick to anything in your general vicinity?

(Seriously, are Americans really that clueless?)

Comment: Re:Comparison equally valid on both sides (Score 0) 873

by SuperKendall (#48602851) Attached to: Apparent Islamic Terrorism Strikes Sydney

To be fair we are bombing ISIS territories and various Arab nations (via drones) and killing a crapload of non-military forces.

I'm not going to defend the drone strikes, but I will point out that every one is absolutely an attempt to strike some military target, the question is what percentage they get wrong...

There is no chance that taking over a coffee shop is going to be a strike at a military target.

Comment: Comparison equally valid on both sides (Score 2) 873

by SuperKendall (#48597883) Attached to: Apparent Islamic Terrorism Strikes Sydney

If you're a religious fanatic in the Middle East and want to kill Christians you become a terrorist. ...

Or, you can join ISIS (the army killing and/or enslaving/raping everyone including Christians).

So there's an equal choice to be had, yet some are choosing to capture and harm non-military forces - those people doing so have been wholly Muslim.

Comment: They did harm real environment (Score 2) 465

by SuperKendall (#48589111) Attached to: Peru Indignant After Greenpeace Damages Ancient Nazca Site

When there's a dark layer of soil on top of sand it's usually a macrobiotic crust, that has taken a few hundred years to do its thing - that is what they crushed as they walked. There's not much worse you can do as far as lasting ecological damage except for sawing down trees a few hundred years old...

They did also harm the aesthetics of the lines themselves.

Science and religion are in full accord but science and faith are in complete discord.

Working...