My daughter is actually 5 and is starting to ask questions I don’t have great ways of explaining to a 5 year old.
Today she asked me how my car gets satellite signals, after I told her what satellites are. I’m less interested in orbits – this thread does a great job explaining that – [https://www.reddit.com/r/explainlikeimfive/comments/60uuxk/eli5_how_do_space_satellites_work/](https://www.reddit.com/r/explainlikeimfive/comments/60uuxk/eli5_how_do_space_satellites_work/)
This is more like how can I explain to her the concept of the physics of signals at her age? What is a signal to a 5 year old?
I’ve read a lot of really cool stuff about how GPS works by triangulating etc. But I’m trying to go one basic layer deeper than that. What is the “signal” made of? For a 5 yr old.
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When you are ready for triangulation, I thought of a game you can play to teach it. Set up three stakes in the yard (or three points inside that you can tie string to). Pick a point and bury (or hide) some candy there, and measure how far it is from each stake. Then give her some string and a measuring tape, or pre-measure and cut the string. Then tell her how far from each stake the point is. Have her tire the string to a stake, mark out the given distance with sticks or something. Point out how the candy has to be somewhere along that arc. Then go to the next one and do it again. Point out that the two arcs only intersect at two points, so the candy has to be at one of those two points. Then do the same with the third stake which will intersect only one of those points. Then she can dig for the candy.
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