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Comment Re:Struggling with this in my household (Score 1) 489

I'm actually taking AP calc right now as a HS senior. I think people that tend to be "good" at math are able to picture problems accurately in our heads, so maybe they have difficulty with the word problems because they just see them as words on a page rather than an actual scenario. Once I can picture a problem I can figure out what's being asked and the best way to attack that problem. Also, thank you for being such a wonderful person as to adopt 5 girls!

Comment Re:Ugh! These slow-ass ballistic trajectories (Score 1) 135

Both of the ideas you threw out are like orders of magnitude slower that conventional rockets. They are just more efficient. The most efficient trajectories to the moon from earth take about a month, they use them with ion drives because it's cheaper and waiting a month is worth a few billion dollars.

Comment Re:Bizarro World (Score 1) 267

The Xbox is in a great position to become the entertainment hub of the living room. Hook it up to the internet and it could replace your television provider. Network it to the windows computer and you can look at the photo album on the tv. The Xbox was a truly long term investment for MS. Oh and it plays games at every price point for every person in the house.

Comment Re:Plantation slavery 2.0 (Score 1) 386

After the slave trade was banned in the US plantation owners couldn't replenish slaves as readily so they had to view them as an investment, so they didn't want to work them to death. Slave treatment within the states also varied, South Carolina was particularly bad because of the ration of slaves to owners being so high because rice is a labor intensive crop.

Comment Re:I actually own some apple hardware. (Score 1) 715

I found it very difficult to compare the alienware I bought to a Macbook. It offers very little information about the exact chip, it tells you the number of cores and frequency but it lacks an actual model number to do a good comparison. I'm not saying they aren't of high quality or worth the money I'm just saying they make it hard to compare them to their competition.

Comment Re:There's nothing to change (Score 1) 266

Well having computers to help design stuff helps. The F-117 was limited by the number of faces the computer at the time could simulate. If CAD had been around during the design of the Shuttle they could have put diagnostics into the engines and wouldn't have had to rebuild them every three flights. The shuttle computer was so bad by today's standards that they couldn't fit all of the software on a single drive. The had separate modules from takeoff, orbit, and landing so that when they got into orbit and when they were ready to descend the astronauts had to hit a button that would shut the computer off, change the drive it was reading, and reboot.

Oh and we still have no idea how to simulate rocket plumes effectively.

Comment Re:Why? (Score 1) 197

Did we have money waste on the moon the first time? It cost about half a trillion dollars (in today's money) and I want to say the estimated return was 13:1, but that's from memory and could be very wrong. Regardless the space race spurred the semiconductor industry and had many other spinoffs, today the Merlin engine that SpaceX makes is based on the J-2 used in the Saturn rockets.

We don't know what we'll get, we don't know what we'll learn

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