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Submission + - We're Planning to Shoot an Asteroid to See What Happens (discovery.com)

astroengine writes: What better way to understand how to deflect an incoming asteroid than to smash into one to see what happens? This may sound like the storyline to a certain science fiction movie involving a team of oil drillers, but this is science fact, and Europe has started planning a mission to map a small target asteroid that NASA will attempt to shoot with a speeding spacecraft, no nukes required. As the first half of the joint Asteroid Impact & Deflection Assessment mission, the European Space Agency this month has started planning for the launch of its Asteroid Impact Mission (AIM) in October 2020. AIM’s target will be the binary asteroid system of Didymos, which is composed of a main 800 meter-wide hunk of space rock circled by a smaller 170 meter-wide asteroid informally known as “Didymoon.” It’s the smaller asteroid that the joint NASA/ESA mission is interested in bullying.

Comment Re:Not an April Fools post! (Score 1) 265

Oddly, California has higher standards for insulation than pretty much anywhere in the USA.

Many places with cold winters (upper mid-west) use natural gas for heating and the summer season requiring air conditioning is pretty short so some things like white roofs don't work well there.

White roofs? Really? That's the closest you could get to insulation? You've got a long way to troll before you troll, troll.

Submission + - Ask Slashdot: Living Without Social Media in 2015?

An anonymous reader writes: On Slashdot, we frequently write derogatory comments regarding social networking sites. We bash Facebook and the privacy implications associated with having a great deal of your life put out there for corporations to monetize. Others advocate for deleting your Facebook profile. Six months ago, I did exactly that. However, as time went on, I have fully realized social media's tacit importance to function in today's world, especially if you are busy advancing your career and making the proper connections to do so. Employers expect a LinkedIn profile that they can check and people you are meeting expect a Facebook account. I have heard that not having an account on the almighty Facebook could label you as a suspicious person. I have had employers express hesitation in hiring me (they used the term "uncomfortable") and graduate school interviewers have asked prying questions regarding some things that would normally be on a person's social media page. Others have literally recoiled in horror at the idea of someone not being on Facebook. I have found it quite difficult to even maintain a proper social life without a social media account to keep up to date with any sort of social activities (even though most of them are admittedly quite mundane). Is living without social media possible in 2015? Does social media have so much momentum that the only course of action is simply to sign up for such services to maintain normality despite the vast privacy issues associated with such sites? Have we forgotten how to function without Facebook?

Comment Re:I'm all for abolishing the IRS (Score 1) 349

You see taxes as a weapon to punish the wealthy and successful.

On the contrary, taxes are a way to maintain the stability of society and thus save the wealthy and successful from their own shortsightedness. Without progressive taxation to maintain a middle class, wealthy elites will eventually end up being lynched by rampaging hordes of serfs. History has shown it to be pretty much inevitable.

If you're a member of the wealthy elite, your choice is not between being taxed or not being taxed; your choice is between being taxed and having your head forced into a guillotine.

Comment Re:I'm all for abolishing the IRS (Score 1) 349

Money is power, and without a way to siphon off and redistribute excessive wealth

And here we get to the real point, and why you and I will never agree. You see taxes as a weapon to punish the wealthy and successful. But I have no faith in your socialistic gospel of envy and class warfare. Government should not be concerned with redistributing wealth (which is almost wholly unrelated to the legitimate social responsibility of caring for the poor and needy). Nor should it be concerned with protecting and enhancing the wealth of the already wealthy. Since our current government, like a madman, seeks both of these contradictory ends, it is ridiculous and ineffective. Until government ceases to seek these two ends, it will continue to burden us with perpetual debt, regardless of our tax system.

Comment Re:Yes, it's free. Also, the patent system sucks (Score 1) 198

Explicit language might modify what would otherwise be there only by an implicit doctrine.

In general, a licensor can modify their own terms. So, if you are using the GPL on software to which you hold the copyright, and you add some sort of exception, it applies. You can't do it to other people's software.

Comment Re:Not an April Fools post! (Score 1) 265

No doubt due to the fact that in much of CA (the densely populated areas next to the coast) you can survive without an AC or any type of heating.

With a little more insulation than usual, you can do that pretty much anywhere in the USA. Oddly, California has higher standards for insulation than pretty much anywhere in the USA. We would very much like the rest of you to catch up sometime.

Comment Re:No such thing as clean coal (Score 2) 265

Yes, the idea that EVERY kind of coal is radioactive contaminated is bullshit.

Right, just the majority of available coal. We've used up the most convenient deposits of it, just like everything else.

And if you collect it an deposit it somewhere it is not more radioactive then the highest yielding uranium ores.

Which suggests the question, is that actually that wonderful? Also, whether it's being collected. Maybe in Germany. Not in the USA or China, though.

The highest contaminated fly ash is 'just ad the edge' that it would be commercially viable to

...make poisonous drywall out of it, as they have done in China?

You can google for the amount of 'dust' (mercury etc.) that is emitted by a german plant. It is in the range of a few kg per year.

Assuming you believe those figures.

Comment Re: Woop Di Do Da! (Score 1) 265

ou can think their relatively mild moderate climate for that,

You can mostly thank our massive population. There are more people living in and around Los Angeles alone than the population of at least half the states in the nation — probably far more if you count illegals correctly, something the census can never possibly accomplish.

Comment Re:As long as it's not windy (Score 1) 140

The only reason why airplanes often use more power in a headwind, is because the pilot may elect to fly faster to (partially) compensate for the wind. An 80 kt airship in a 40 kt headwind will only have a ground speed of 40 kt, so the pilots may well choose to increase power to get a higher ground speed.

The other reason why airplanes use more power in a headwind is that the pilot still wants to get from point A to point B, which are fixed relative to the ground. If he has a headwind, it means he needs to cover more "effective distance" (relative to the air) to get there and thus use more fuel even if he doesn't increase his airspeed.

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