WASHINGTON (AP) — Engineers have come up with a motor-free device to make walking more efficient and easier — something scientists once thought couldn't be done.
Engineers create boot-like device to make walking easier
source U.S. News - News http://ift.tt/1xzl8Ba
Engineers create boot-like device to make walking easier
source U.S. News - News http://ift.tt/1xzl8Ba
No comments:
Post a Comment