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Comment: Re:How did they launch from the moon? (Score 1) 211

by Waffle Iron (#47494905) Attached to: Apollo 11 Moon Landing Turns 45

I've never understood how they were able to launch from the moon back towards Earth. Launching from the Earth requires massive infrastructure and huge rockets. Yes, the moon's gravity well is shallower, but still significant.

It's because the fundamental equation that relates a rocket's performance and the mass fuel it requires to orbital velocities is exponential. This makes it work out so that any chemical rocket leaving earth has to have the vast majority of its weight as fuel, where as a rocket leaving the moon only about half of its weight as fuel.

What's more, the entire lunar module and its fuel supply is dead weight as far as the earth launch is concerned, which makes the earth rocket and its fuel multiple all the bigger. Then there's the issue of bringing along enough fuel to slow down the craft into lunar orbit, and escaping lunar orbit back to earth. The lunar lander didn't need to handle any of that, either.

Comment: Re:No (Score 2, Informative) 180

by Waffle Iron (#47420557) Attached to: Will Google's Dart Language Replace Javascript? (Video)

You might want to look in the mirror.

Scripting languages usually feature dynamic, strong typing. (The runtime always knows exactly what type its dealing with.)

Most compiled languages have static, strong typing. C is somewhat of an exception, being relatively weakly typed. (It's easy to make all sorts of bizarre type casts, sometimes implicitely.)

A few languages are very weakly typed, such as Forth.

Comment: Re:Externalities (Score 1) 262

by Waffle Iron (#47265815) Attached to: Elon Musk's Solar City Is Ramping Up Solar Panel Production

Most of the environmental issues from Coal have effectively been eliminated, except for the perceived C02 emission standard,

So, other than spewing the single largest existing threat to the welfare of human civilization, coal is just fine.

Meanwhile, by your arguments, the problem of setting up a recycling center for solar panels appears to be an intractible dilemma.

Comment: Re:NO. (Score 1) 493

by Waffle Iron (#47131323) Attached to: Mutant Registration vs. Vaccine Registration

you choose to put alcohol in your body to get drunk, you choose to avoid putting anything in your body to get unvaccinated. See the difference?

By not getting vaccinated, you're choosing to allow harmful microbes into your body. You choose to become a factory that create billions more of them and then spread them into to to the bodies of your unwilling victims.

BTW, do you think that driving drunk is safer than not being vaccinated?

It can be. If people like you were around when they started vaccinating for smallpox, you would have been responsible for countless millions of deaths by now. It would have made all of the drunk driving deaths in history look like a drop in the bucket.

Comment: Re:NO. (Score 1) 493

by Waffle Iron (#47119591) Attached to: Mutant Registration vs. Vaccine Registration

Vaccinated person gets someone else sick = no liability. Un-vaccinated person = lock em up and throw away the key.

This is the same as: Sober driver kills someone in an auto wreck: Liability limited to an increase in future insurance rates. Drunk driver kills someone: locck em up and throw away the key.

Do you advocate legalization of all irresponsible behaviors, including drunk driving?

Comment: Re:Global warming is causing bad grades now (Score 1) 187

Because CO2 is present in parts per million, whereas oxygen is around 20%. If amount of CO2 increases by a few hundred percent, the amount of oxygen drops by a small fraction of 1%. It is much easier and more accurate to measure the difference in CO2 concentrations than that of O2.

Perhaps you shouldn't be throwing barbs about global warming if this middle-school-level science wasn't already obvious to you.

Comment: Re:Global warming is causing bad grades now (Score 1) 187

You do realize that they're talking about indoor CO2 levels that are far in excess of the overall atmospheric levels related to global warming?

Moreover, they do not imply that the CO2 itself causes poor performance. It's clear that they're using it as a *measure* of poor ventilation, which is correlated with bad grades.

Maybe it was a little stuffy in the school where you were learning analytic reading skills.

The universe does not have laws -- it has habits, and habits can be broken.

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