This was on boing boing a few days ago and one conclusion was that the Tesla charging stations are spaced at almost the maximum range of the car but the car can't get that range in cold weather when the cabin heater is being used. In an electric car there is not enough parasitic heat loss to heat the cabin so the energy comes from the batteries.
I was in Sydney with my family the week before APEC. The day we checked out of our hotel there was a continuous stream of police officers checking in. I am sure the police were prepared for many eventualities but clearly not for a "gate crasher who strolls through the front door carrying a bottle of wine", so to speak.
Yeah but this to me looks like an ion thruster with lower specific impulse and higher thrust, because microwaves give the ions less kinetic energy than existing thrusters. There is a niche for high thrust ion drives.
...you'd think that if high energy in a closed, conical microwave cavity produced thrust, someone would have noticed before this. We've done a lot of work with microwaves.
Of course it does, there are photons coming out of it.
> Mars is quite windy so your vehicle will get blown around
I don't think the atmosphere on Mars has enough molecules in it to blow around anything of substance. Atmospheric density on Mars at ground level is lower than anything a basic physics-classroom vacuum pump can produce.
If your vehicle is off the ground and in the air it is going to move at the speed of the air until terrain gets in the way, regardless of how thin the air is.
One problem is that you have all 1.6 atmospheres of nitrogen sucking the heat out of your combustion chambers but I suppose you could pre-heat it with your exhaust and heat the engine and air to get the cycle going.
This is helped somewhat by the higher density of the martian atmosphere, in relation to its pressure. The density is pushed up by the low temperature and the higher density of carbon dioxide. OTH Mars is quite windy so your vehicle will get blown around quite a bit which could create hazards.
Load liquid oxygen into the fuel tanks. Methane comes into the engine from the atmosphere. An engine with minor modifications might be made to operate.
Cheaper to by and copy the DVDs I suspect but thanks for the info. I have a friend who travelled in the US recently but he is also an expert at finding torrents to I doubt he finds not being in the US a real issue.
I don't think PAL/NTSC is the issue here. Its more licensing for the content. Movie delivery channels are locked down and it may not be worth the effort of netflix to negotiate their way in. Therefore a lot of us torrent and watch free stuff on youtube.
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This was on boing boing a few days ago and one conclusion was that the Tesla charging stations are spaced at almost the maximum range of the car but the car can't get that range in cold weather when the cabin heater is being used. In an electric car there is not enough parasitic heat loss to heat the cabin so the energy comes from the batteries.
I was in Sydney with my family the week before APEC. The day we checked out of our hotel there was a continuous stream of police officers checking in. I am sure the police were prepared for many eventualities but clearly not for a "gate crasher who strolls through the front door carrying a bottle of wine", so to speak.
Yeah like the Chaser APEC prank
I just sent this to a friend who uses Yahoo. His email was broadcasting spam late last week. He thought it was his PC but maybe not...
The current ipod nano with six icons on the screen would make a great phone. Possibly good enough for me to buy an iphone.
Even the cases from the same manufacturer are not standardized
Hardly the fault of the operating system.
my cal quality.
What is that?
Android has a similar problem in that they cannot seem to standardize things. Cases will never be standardized in my opinion
Well yeah thats because they come from different manufacturers.
When Android first came out it was quite a bit cheaper than the iPhone. I don't believe that is true anymore.
My local supermarket has $60 AUD android prepaid phones. Total cost on the contract might be $200 AUD. Can apple match that? I doubt they want to try.
Surely that brings you to 90% of the population.
This isn't going to end well for the "hacker".
Linux is ever so slowly turning into Minix.
Evidence?
Yeah but this to me looks like an ion thruster with lower specific impulse and higher thrust, because microwaves give the ions less kinetic energy than existing thrusters. There is a niche for high thrust ion drives.
...you'd think that if high energy in a closed, conical microwave cavity produced thrust, someone would have noticed before this. We've done a lot of work with microwaves.
Of course it does, there are photons coming out of it.
chances are any thrust developed is actually air that's getting heated up and expanding out of the container.
Sure but what if this turns out to be an efficient way to turn a small amout of gas into high energy reaction mass, with a high specific impulse?
I think it is Other.
Ah thats interesting. I got it mainly from Arthur C Clarke's novel Imperial Earth in 1975.
> Mars is quite windy so your vehicle will get blown around
I don't think the atmosphere on Mars has enough molecules in it to blow around anything of substance. Atmospheric density on Mars at ground level is lower than anything a basic physics-classroom vacuum pump can produce.
If your vehicle is off the ground and in the air it is going to move at the speed of the air until terrain gets in the way, regardless of how thin the air is.
One problem is that you have all 1.6 atmospheres of nitrogen sucking the heat out of your combustion chambers but I suppose you could pre-heat it with your exhaust and heat the engine and air to get the cycle going.
This is helped somewhat by the higher density of the martian atmosphere, in relation to its pressure. The density is pushed up by the low temperature and the higher density of carbon dioxide. OTH Mars is quite windy so your vehicle will get blown around quite a bit which could create hazards.
Load liquid oxygen into the fuel tanks. Methane comes into the engine from the atmosphere. An engine with minor modifications might be made to operate.
I could never figure that scene out. Deckard seemed to be looking around a foreground object.
Cheaper to by and copy the DVDs I suspect but thanks for the info. I have a friend who travelled in the US recently but he is also an expert at finding torrents to I doubt he finds not being in the US a real issue.
I don't think PAL/NTSC is the issue here. Its more licensing for the content. Movie delivery channels are locked down and it may not be worth the effort of netflix to negotiate their way in. Therefore a lot of us torrent and watch free stuff on youtube.
Its speculative though. They don't know it got to 3.2 km range. And if your vehicle is disposable and the mission is a bonus, why not take risks?