We have completed maintenance on DiscoverMagazine.com and action may be required on your account. Learn More

Tossed Coins More Likely to Land Same Side Up, Say Researchers

A coin toss isn't as fair as everybody thought, say scientists, after 350,000 flips.

coin-flip
(Credit: OB production/Shutterstock)

Newsletter

Sign up for our email newsletter for the latest science news
 

When Italy’s national soccer team took on the Soviet Union in the semi-finals of the European Championship in 1968, the score was 0-0 at the end of the game and a further period of extra time failed to separate the two sides.

The rules of the time dictated that in these circumstances, the game should be decided by the toss of a coin. Italy’s captain Giacinto Facchetti called correctly, and Italy proceeded to the final, which they eventually won.

A coin toss is often considered the fairest way to settle an otherwise intractable question. The process involves using your thumb to launch a coin into the air and then catching it again. The chances of it landing on one side or the other — heads or tails — are 50:50, which is what makes the process fair. Or so everyone had thought.

0 free articles left
Want More? Get unlimited access for as low as $1.99/month

Already a subscriber?

Register or Log In

0 free articlesSubscribe
Discover Magazine Logo
Want more?

Keep reading for as low as $1.99!

Subscribe

Already a subscriber?

Register or Log In

Stay Curious

Sign up for our weekly newsletter and unlock one more article for free.

 

View our Privacy Policy


Want more?
Keep reading for as low as $1.99!


Log In or Register

Already a subscriber?
Find my Subscription

More From Discover
Recommendations From Our Store
Shop Now
Stay Curious
Join
Our List

Sign up for our weekly science updates.

 
Subscribe
To The Magazine

Save up to 40% off the cover price when you subscribe to Discover magazine.

Copyright © 2024 Kalmbach Media Co.