Comment: Re:How about a non-exploding nuke? (Score 1) 311
The Van Allen belt only extends ~40k miles from the earth's surface. I'm not sure how they're relevant to something occuring 86 million miles away?
|
|
The Van Allen belt only extends ~40k miles from the earth's surface. I'm not sure how they're relevant to something occuring 86 million miles away?
I don't think you're thinking about how big space is.
A nuke is bad for space equipment? We're talking hitting an asteroid moving say... 60,000 mph (which travels 1.44 million miles a day) months before it hits earth.
Even detecting the successful ignition of the device with equipment pointed straight at it might be difficult.
Sam
You forgot the most important comparison: Lithium Ion = 400 Wh/l
So hydrogen has no better energy density than batteries, and requires an additional (and very expensive... platinum ftw) fuel cell, has much lower cycle efficiency (the most efficient production method is to make it from natural gas @ ~80% efficiency, the cell itself yields around 50%, so your cycle efficiency is about 40%), and still requires fossil fuels... eg: natural gas. It's also stored under intense pressure (5-10kpsi), the tanks have to be replaced periodically due to pressure cycling and hydrogen embrittlement. Oh, and you can't stop it from seeping out of tank seals, so it also "self discharges."
Oh, and don't forget, 30 minutes to fill for a 150 mile range http://www.caranddriver.com/features/pump-it-up-we-refuel-a-hydrogen-fuel-cell-vehicle-the-half-hour-fill-up-page-2 . The exact same rate as a Tesla supercharger.
I've never understood why anyone ever looked at hydrogen as a panacea to solve electric car ills.
Sam
That should be a setting in the BIOS. Look for something like "Wake on USB."
Both my media machine and laptop have this enabled, and a simple tap of the spacebar wakes them up.
Sam
Your COMMENT is a huge
Diatomaceous earth also works wonders. Get a bag of "food grade" (yes, it's often mixed into the food you eat) DE and sprinkle around the baseboards where they're coming in. Avoid "pool grade" for your lung health.
It works like moon dust works on astronauts: it's sticky and microscopic and gets into the joints and cuts up the ants, resulting in their eventual death by dehydration.
Sam
A thought experiment:
You have wireless internet at home, not "out whereever."
You use this MS app to download Youtube videos to watch later, when you don't have internet access.
This seems like time-shifting.
It gets more fuzzy say... you have now a mediocre 3G internet connection with a 200mb monthly cap (common).
Now you want to download the video to watch later, where you technically have internet access, but due to slow speeds it would take a long time, and eat up 1/3 of your total monthly bandwidth. You're network-shifting?
Sam
I sure wish the mod system went higher than 5.
He keeps differentiating, flying off on a tangent.