On a sunny day, the top of the Eiffel Tower slowly drifts in a small circle about six inches wide — it isn't the wind, it's the sun, heating one side of the iron at a time and making the whole tower l

On a sunny day, the top of the Eiffel Tower slowly drifts in a small circle about six inches wide — it isn't the wind, it's the sun, heating one side of the iron at a time and making the whole tower l — brisk.news