Calvin and Hobbes Dad explains science

My second most favourite series from Calvin and Hobbes, where Dad teaches Calvin the wonders of science.

How do they know the load limit on bridges Dad? They drive bigger and bigger trucks over the bridge until it breaks. Then they weigh the last truck and rebuild the bridge. Oh. I should've guessed. Dear, if you don't know the answer. Just tell him!

Why does the sky turn red as the sun sets? That's all the oxygen in the atmosphere catching fire. Where does the sun go when it sets? The sun sets in the west. In Arizona actually, near flagstaff. Oh. That's why the rocks there are so red. Don't the people get burned up? No, the sun goes out as it sets. That's why it's dark at night. Doesn't the sun crush the whole state when it lands? Ha ha, of course not. Hold a quarter up. See, the sun's just about the same size. I thought I read that the sun was really big. You can't believe everything you read, I'm afraid. So how does the sun rise in the east if it lands in Arizona each night? Well, time for bed. I hope someday I'm as smart as Dad is. Why, what did he tell you now?

Dad, will you explain the theory of relativity to me? I don't understand why time goes slower at great speed. It's because you keep changing time zones. See, if you fly to California, you gain three hours on a five-hour flight, right? So if you go at the speed of light, you gain MORE time, because it doesn't take as long to get there. Of course, the theory of relativity works only if you're going west. Gee, that's not what Mom said at ALL! She must be totally off her rocker. Well, we men are better at abstract reasoning. Go tell her that.

How do bank machines work, Dad? Well, let's say you wwant 25 dollars. You punch in the amount... and behind the machine, there's a guy with a printing press who makes the money and sticks it out this slot. Sort of like the huy who lives up in our garage and opens the door? Exactly.

Why does ice float? Because it's cold. Ice wants to get warm, so it goes on top of liquids in order to be nearer to the sun. Is that true? Look it up and find out. I should just look stuff up in the first place. You can learn a lot, talking to me.

Written on 04 May 2007

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S Anand, Infosys Consulting, London UK. +44 7957 440 260