Sitting at a wobbly table? Fix it with math
We've all been there: you're at a restaurant, sitting down for a nice dinner, and the table wobbles back and forth, interrupting your dinner or spilling your water glass.
It turns out that mathematicians have considered this problem, and figured out a solution. What you do is slowly rotate the table a quarter turn, and at some point during that turn, the table must reach a stable position:
Of course there are some qualifiers here: it only works for a table that has four legs in a flat plane — not for one with a single central post, or one with one leg significantly shorter than the others. But for regular old tables, it's a neat trick for keeping impressing your friends, and keeping your dinner in place.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Ryan Cooper is a national correspondent at TheWeek.com. His work has appeared in the Washington Monthly, The New Republic, and the Washington Post.
-
Political dynasties at war in the Philippines
Under the Radar 'Fiercer, nastier, and more personal' rift between Marcos and Duterte factions risks splitting ruling coalition
By Elliott Goat, The Week UK Published
-
'Without mandatory testing, bird flu will continue circulating at farms across the country'
Instant Opinion Opinion, comment and editorials of the day
By Justin Klawans, The Week US Published
-
Thirteen missing after Red Sea tourist boat sinks
Speed Read The vessel sank near the Egyptian coastal town of Marsa Alam
By Arion McNicoll, The Week UK Published
-
Nobody seems surprised Wagner's Prigozhin died under suspicious circumstances
Speed Read
By Peter Weber Published
-
Western mountain climbers allegedly left Pakistani porter to die on K2
Speed Read
By Justin Klawans Published
-
'Circular saw blades' divide controversial Rio Grande buoys installed by Texas governor
Speed Read
By Peter Weber Published
-
Los Angeles city workers stage 1-day walkout over labor conditions
Speed Read
By Justin Klawans Published
-
Mega Millions jackpot climbs to an estimated $1.55 billion
Speed Read
By Catherine Garcia Published
-
Bangladesh dealing with worst dengue fever outbreak on record
Speed Read
By Catherine Garcia Published
-
Glacial outburst flooding in Juneau destroys homes
Speed Read
By Catherine Garcia Published
-
Scotland seeking 'monster hunters' to search for fabled Loch Ness creature
Speed Read
By Justin Klawans Published