An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Whether they’re made of leather or metal, people have been using tape measures for a long time. The first spring-loaded metal tape measure was invented and patented in England in 1829. Alvin Fellows
Right now, scientists all over the world are trying to understand how we get injured when our bodies are subjected to strong, dynamic loads – a hard body-check on the hockey rink, a tackle on the
If I told you my job required a hair net, a “bunny suit,” and a million-dollar piece of equipment, would you have any idea what I do? Do I sound like a mad scientist or a crazy lunch lady? If you
Amelia Earhart continues to make headlines, mainly because of her mysterious disappearance. The famed aviatrix vanished on July 2, 1937, during her attempt to pilot a plane around the world. Searches
I research additive manufacturing, which some people call solid freeform fabrication, but most people know as 3-D printing. Additive manufacturing covers a wide range of processes that we can use to