How America’s First Highway Changed Everything

The young nation had enormous tracts of land to the west, with no easy way for people to get there.

History & Culture How America's First Highway Changed Everything The National Road was a federal project in early America designed to address a problem that seems quaint today but was extremely serious at the time. The young nation possessed enormous tracts of land to the west. And there was simply no easy way for people to get there... READ NOW Advertisement READ THESE How World War II Helped Create the Interstate The Canal That Made New York the 'Empire State' The Man Who Changed How Roads Were Built Forever You are receiving this newsletter because you subscribed to the Today I Learned newsletter. If you wish to unsubscribe, please click here A Dotdash Brand 1500 Broadway, 6th Floor, New York, NY, 10036 © 2017 Dotdash - All rights reserved. Privacy Policy.

                                                           

Fingerprints May Not Be Useful for Anything

So why do we have them?

Science Fingerprints May Not Be Useful for Anything For over 100 years scientists have believed that the purpose of fingerprints is to help us grip objects. Researchers have now discovered that fingerprints do not improve grip at all. In fact, fingerprints actually reduce friction and our ability to grasp smooth objects. So why do we have them? READ NOW Advertisement READ THESE The Reason Cheap Rings Turn Your Fingers Green Does Salt Really Keep Food From Going Bad? Why Do Your Hands Prune in Water? You are receiving this newsletter because you subscribed to the Today I Learned newsletter. If you wish to unsubscribe, please click here A Dotdash Brand 1500 Broadway, 6th Floor, New York, NY, 10036 © 2017 Dotdash - All rights reserved. Privacy Policy.