My kids understand physics!!!

[rhu]

Alissa, earlier today, was pretending to have a son. She then explained that her son is older than she is. I asked how that could possibly be, and she replied: "Every day we put him in a spaceship traveling near the speed of light for an hour until he became older than I am." I didn't bother pointing out that she had the twin paradox backwards, because I was so proud that she remembers the twin paradox.

Meanwhile, Tani had a question about... well, here are some photos I just took of the ad-hoc "visual aids" that I made. See if you can guess what his question was about.

 

 

Comments

[rubrick.livejournal.com]

I'm pretty sure I have it. That's awesome. (Of course, as we all know, if he thinks he understands it, he doesn't really understand it.)

[cnoocy]

That is awesome.

[ericberlin.livejournal.com]

Some of us are going to eventually require an explanation.

[vettecat.livejournal.com]

Can you explain for those of us who are less alert?

[ertchin.livejournal.com]

I didn't get it until I read your parenthetical.