You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

Metro

Yvonne Abraham

The physics of Santa’s Christmas night journey

Like many of you, I lie awake this time of year, fretting about how Santa pulls it off.

Even allowing for different time zones, how can he possibly make it around the globe in one night, shimmying down gazillions of chimneys, dropping off gifts, scarfing what must be literally tons of cookies? Shouldn’t his sleigh be unliftable? Wouldn’t he have to travel at impossible speeds? Will he make it to my place? Who can answer these questions?

Loading comments...

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week