That's pretty slick. I didn't know they were working on that capability. It's too bad the link is dead - I'm curious to know more.
That's less than 5x the distance.
It's much closer than that: the moon is only another 70% delta-v from LEO. http://en.wikipedia.org/wiki/Delta-v_budget
Unfortunately it's not just a linear extrapolation. The Merlin engine burns kerosene with liquid oxygen. That's a good setup to get to LEO, but upper stages have more engineering constraints (starting after coasting for several days in vacuum; cryogenic fuels boil off; trying to squeeze more specific impulse where it really pays off), so they tend to run on hydrazine. It requires a whole new design, whereas the Falcon has simply been scaled up.
I don't know that much about the business, but generally there's a lot of money in getting to LEO, and not a lot of commercial interest in the moon. I don't foresee SpaceX dumping the money into such a design any time soon. If someone does want to get to the moon it's more likely they'd build a specialized spacecraft and then pay SpaceX for a ride to LEO.
not killing dictators is actually important because if killing them is the only way to get rid of them they will hold on more tightly. The means of bribing them by letting them keep some ill-gotten gains is justified by the ends
Putting aside the moral argument, I disagree with the practical effect. Providing a way out might encourage the current tyrant to retire peacefully, but it also makes the position more appealing to the next ten guys who want to take his place.
3. Can it tell if the animal is on a leash and not going to be an issue?
3.a. Can it tell if the animal is on a leash and is still going to be an issue?
I'll grant that you have a point there. I'm sure Amazon themselves have been through a number of failures before getting this system working.
Yes, it's incredible how Amazon is using something exactly as intended after they bought it.
its widely recognized that US beat the Soviets in the early space race
First artificial satellite: Sputnik
First human in space: Yuri Gagarin
First human in orbit: Yuri Gagarin (He gets mentioned twice because he achieved this before the US managed even a suborbital flight)
First lunar flyby: Luna 1
First impact on the moon: Luna 2
First spacewalk: Aleksei Leonov
First soft landing on the moon: Luna 9
The commitment to boots on the moon led to Gemini turning things around in the mid '60s, but before that the Soviets did quite well, especially with Earth-orbit tech.
Coke is a poor choice. You'll die of a heart attack or stroke, and you'll be agitated and panicking the whole way down. It will be painful for both you and the family member who gives it to you.
Opiates (heroin or morphine) or barbiturates (anything ending in -barbital) are better. You will be instantly comfortable, unconscious shortly thereafter, and you'll die of respiratory depression in your sleep which is peaceful and much less traumatic for anyone who's with you.
This doesn't add up. The Nexus 7 has a 16Wh battery. The worst USB port possible (100mA) provides half a watt. Either a) your N7, rated for 10h active / 300h standby, is guzzling so fast that it would deplete a full battery in 32h of all-standby, or b) the USB port is defective.
Those blocks will never be used, therefore the drive always have plenty of free space, so there is no need for trim.
It's not quite that simple either.
SSDs write in pages, but erase in blocks of pages. When a page is changed it gets rewritten to another block. The original page is marked as free, but it can't be erased until the whole block is free. Therefore the SSD performs garbage collection of free pages, re-packing them into complete blocks.
On its own the SSD only knows which pages it freed during rewrites - it doesn't know about pages that COULD be freed because they're deleted. Overprovisioning prevents blocking when there are no free pages (that's a huge win), but the drive still wastes lots of time and wear-life moving deleted data around during GC. TRIM provides the necessary hint to prevent that waste.
There isn't really one last coin, because the fixed reward is halved periodically.
There really IS a last coin. The generation quantity is a fixed-point number of "satoshis" with 8-decimal precision; 1 satoshi == 10 nano-BTC. The reward is not halved - it is right-shifted by one bit. Generation will abruptly end at 20,999,999.9769 BTC.
The blue bottle is this one: http://en.wikipedia.org/wiki/Portuguese_Man_o'_War . "Stings usually cause severe pain to humans, leaving whip-like, red welts on the skin that normally last 2 or 3 days after the initial sting, though the pain should subside after about an hour. However, the venom can travel to the lymph nodes and may cause, depending on the amount of venom, a more intense pain. A sting may lead to an allergic reaction. There can also be serious effects, including fever, shock, and interference with heart and lung function."
That doesn't sound benign. You tangled with a genuine screamer.
Let's not forget that North Korea has also achieved nuclear fusion, developed a super drink that can cure aging and disease, and found a "unicorn lair" last year.
And let's not forget that the US has achieved democracy, developed a universal healthcare plan to cure aging and disease, and found WMDs in Iraq.
Our bullshit is more refined but equally pervasive.
Your sources and the GP's don't actually conflict. They're just measuring different things.
The XKCD image is comparing Sieverts - absorbed dose - at a specific location. If you were staring into the core of Chernobyl, you received a massive dose. That effect is very localized.
The Scientific American article is comparing the regional effects: typical releases divided over a few hundred square miles.
The "coal far outweighs nuke" argument is based on global effects: While Chernobyl was intensely bad locally, the average effect over the whole surface of the Earth was very small - much smaller than the net emissions of coal.
These are all based on Sieverts/Rems. They measure instantaneous levels. The thing with coal is it's a gift that keeps on giving: the nuke shine of Chernobyl was intensely bad if you were there; a large number of becquerels (decays per second) of iodine-131 were released from Fukushima but it had an 8 day half-life. With coal it's a much longer half life and much more widespread. While there are no spatial and temporal hotspots like you have with nuke disasters, it keeps on going, so the everyone on the surface of the Earth will keep getting hit not just today, but for their entire lives.
The average human will absorb far more radiation from coal than from all nuke disasters. The numbers either way are small enough that you have other things to worry about as an individual, but coal is definitely going to cause a higher net number of cancers globally.
I also don't advocate saving everyone. $100,000 cancer treatments aren't going to be for everyone. However, setting broken bones or covering antibiotics for an infection are simply so cheap that we're better off just paying for it. It's cheaper than paying for the massive bureaucracy we have now.
Yes, with taxes. I'm in a high bracket so I'm subsidizing others. I'm okay with that.
I have an opinion; I accept that other people have their opinion; and I think a compromise might be possible. How is that batshit crazy?