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Comment Re:all our yesterdays (Score 1) 123

You could.... use a heat pump?
How do you think I cool my house and inside my car to a lower temperature than outside?
How does my fridge and freezer get colder than the inside of my house?

Satellites with radioactive material in them use the heat to generate electricity. The problem then becomes heat, so they need to be covered in reflective material so the sun doesn't melt them.

Comment Re:Robots to dig (Score 1) 123

They don't last too long in the atmosphere.
It's hot, it's acidic and it's dense.

With the 400+ degrees, the sulfuric acid and being 90x higher pressure than earth, nothing we've sent there has lasted more than about 2 hours on the surface

The current record holder is with 127 minutes..

Comment Re: $300 or $400 for map update (Score 1) 310

Positive. It's the Honda "Internavi" system.
It supports live traffic and map updates via IR and RF signals from networks all over Japan too.

Completely useless after the car gets exported though, and the language can't be switched to English either.

Comment Re: $300 or $400 for map update (Score 2) 310

in-car systems use the vehicle speed sensor and a gyro for the main navigation input, with GPS being used to find an approximate position only.

At least that's how it works in my 2005 Honda. Means it still works in urban canyons and tunnels.

I suppose an after-market system could use an accelerometer instead of the speed sensor. GPS isn't the quickest in terms of updating your absolute position. If it's running at 1Hz and you're travelling at 100kph, it's around 30m between updates.

It's quite often my phone says "Take the 3rd exit" in a round-about when I'm already taking that exit.
The reason I don't use the in-car navigation is because its maps are only for Japan, and I've never even been to Japan.

Comment Re:Title smells like bullshit (Score 1) 102

Yellow journalism, or the yellow press, is a type of journalism that presents little or no legitimate well-researched news and instead uses eye-catching headlines to sell more newspapers. Techniques may include exaggerations of news events, scandal-mongering, or sensationalism.

That pretty much describes every media outlet around these days.

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