Ask HN: If earth was the size of a coin, how far to the nearest star?
An 8 year old asked me....
4 comments
I calculate the earth is about 566 million £1 coins wide so everything scales down by roughly that much. So the sun would be 0.164 miles away.. and Proxima Centauri 44,063 miles away?
Googling "coin size":
Coin radius: 38.1 mm - silver dollar (Cited from: https://www.cointalk.com/threads/us-coin-relative-sizes-char...)
Googling "earth size": Earth radius: 6371 km
Googling "distance to sun in km" Distance to Sun: 149.6 million km
38.1e-4 / x = 6371e4 / 149.6e10
Doing the calculation is left as an exercise to the reader.
Googling "earth size": Earth radius: 6371 km
Googling "distance to sun in km" Distance to Sun: 149.6 million km
38.1e-4 / x = 6371e4 / 149.6e10
Doing the calculation is left as an exercise to the reader.
What kind of coin? If it was as big as a Triganic Pu, then ... about 4 light years.
Isn't this just math?