Hello dear readers, I hope you put on your puzzle solving hats, because I am back for another Solve it Sunday!
This one might be tricky for those who don’t live with snow in the winter, but you might know the answer anyways.
Here is the riddle, and as always, the solution is in the comments:
You will most likely have noticed that polished floors are considerably more slippery than rough (or fluffy) ones. So should it not follow that smooth ice is more slippery than bumpy ice? If you ever have occasion to pull a sledge, however, you will discover that it moves more easily over uneven ice than over smooth ice. You may also have observed that roughened ice is trickier to walk on than glossy ice.
Now for a little practical experiment – one that you, dear reader, are able to take part in without any undue effort. Exhale slowly and steadily into the palm of your hand. Make a mental note of how it feels. Now purse your lips, and blow vigorously onto your palm. You may use the other hand if you wish.
You will observe that when breathing slowly, the air feels warm, but while blowing firmly, the air feels cool.
Your breath has not changed temperature. Neither has your hand. So why is there a difference?
Good luck everyone, and just remember, simple is sometimes the answer.
Hello everyone! I’m back with another post for Solve it Sunday after missing last week.
I hope you enjoy this one. It was a lot of fun talking through it with some friends, seeing if we could find an answer.
Thanks to the work of Copernicus, Galileo, and may others, we know that the day happens because the world rotates on its axis, while the sun remains (apparently) still. But it is not always wise to blindly believe what you are told.
It would be reasonably straightforward to conduct an experiment that would prove that the Earth is revolving on its axis. You wouldn’t even need to leave the Earth’s surface.