Comment Re:They're hardly trying (Score 1) 81
Think about how many rockets we would need to get a relevant amount of stuff into L1...
Think about how many rockets we would need to get a relevant amount of stuff into L1...
Practically zero... most galaxies already contain a central black hole with millions or sometimes billions of solar masses...
Don't forget that black holes don't "suck" more than a star with the same mass... you can just get closer to the black hole without touching it. At the same distance you get the same gravity.
Alpha-particles are Helium-4 cores... not Helium-3.
and you need a hell lot more pressure and/or temperature to acchive Helium-3 fusion compared to the sustained Deuterium-Tritium fusion we still haven't resolved yet.
Depending on the amount of youtube you watch daily, Youtube premium can be quite cheap...
And to be fair, its a good thing to move (partially) away from this "everything is for free but with insane amounts of ads" to an alternative business model.
The interesting thing will be if a generation of users accustomed to "get the service for free" are willing to pay for it...
In theory yes... in practice the ESA moves much slower than SpaceX... so most likely the lead of SpaceX will increase with time.
When they decided that the Ariane 5 was too expensive because of SpaceX they should have set aside a billion Euro or two for building something similar to SpaceX Falcon 9... instead they spent billions for the Ariane 6, which will fly in a few years and will be more expensive than SpaceX is today.
Four words?
Zero, One, Two, Three, Four...
makes perfect sense for people doing C programming...
It is anonymous for people using the app who do NOT report their numbers because they have been infected.
It is a random number per day (I think the paper says one random number per 15 minutes)... unless someone grabs your phone to get the numbers you app rolled up and stored locally, they don't have much chance to know that these numbers were from you if they have the list of numbers from a different phone.
"Python is the closest thing there is to Lego in programming languages."
Squeak
Just do not step on it when the lights are out.
Fire it into the Sun. Ain't nobody living there.
Unfortunately we don't have the technology to do this with the large quantities of nuclear waste(you need at least 2-3 times the energy to put something into the sun than put it on the surface of the moon). And even for small quantities it would be costly beyond measure. And if one in a hundred rockets go wrong (BANG!) it would be BAD.
The fun thing is that the last years, France had to import quite a bit of electricity from Germany, both in the Winter (their nuclear power plants did not produce enough power) and in the summer (it got so warm they had to shut down nuclear power plants because of insufficient cooling).
"SpaceX expects its own latencies to be between 25 and 35ms, similar to the latencies measured for wired Internet services. Current satellite ISPs have latencies of 600ms or more, " https://arstechnica.com/inform.... Possibly dated information. But one has to wonder, even if you've fixed a latency issue, how is packet collision handled when ground stations can't hear each other? There's only so much bandwidth allocated. Should be interesting.
Just the same as satellite phones and other "internet over satellite" (with uplink) providers... Time-division multiple access.
Ground stations have to allocate some time/frequency space over a "management slot" before they are allowed to transmit their normal data.
A lot of people are criticising how cheaply made these drones were, but simplicity is genius...
The amount spent by the Russians to shoot these drones down must have vastly exceeded the cost to build and launch the drones, not to mention the cost of repairing/replacing anything that the drones managed to hit. If you can spend $50 and cause your enemy to waste $500 repelling your attack then you've achieved a successful result.
Only if you have at least 10% of the resources of your enemy available... otherwise you will run out of steam before the enemy, which is not a successful result.
Is it asymmetric? If they have a whole cloud of drones, you can defend against it with your own cloud of drones. And if you build your own cloud of drones, that cloud can also be used for offense. Asymmetric, as I understand it, is when you have to spend a lot on defense and it doesn't buy you any offense. This is more symmetric because it is really just like equalizing soldiers on a battlefield. If they have 10 drones and you have 10 drones, you can fight them to a standstill. But if you have 100 drones, you can overpower their numbers. Defense is achieved by spending the same amount of money that your opponent spent... that's symmetry.
if you don't have a "front line" with well defined "battle zones" an attacker with an easy to transport weapon system has always an advantage. Defending against swarms as in the video would require the defender to have "defense swarms" everywhere... while the attacker can drive his swarm close to the destination to launch a concentrated attack.
That said, "only 11 lightyears away" is worth a good chuckle.
Hey, the Ross 128 spaceport is only two hyperspace jumps away from Earth when you lift off for the first time.
Yeah, good old time... has it already been 24 years?
Real Programmers don't write in PL/I. PL/I is for programmers who can't decide whether to write in COBOL or FORTRAN.