News

News Flash: Memory Shop and Anime Zakka to Open in Harvard Square

News

Harvard Researchers Develop AI-Driven Framework To Study Social Interactions, A Step Forward for Autism Research

News

Harvard Innovation Labs Announces 25 President’s Innovation Challenge Finalists

News

Graduate Student Council To Vote on Meeting Attendance Policy

News

Pop Hits and Politics: At Yardfest, Students Dance to Bedingfield and a Student Band Condemns Trump

SPEEDING EXPERT McCALEB BUILDS NEW BURGLAR ALARM

NO WRITER ATTRIBUTED

Thomas S. McCaleb, instructor 19 Geographical exploration and formerly of trafile control fame, has switched his field this time to catch bookthieves instead of speeders.

His latest invention is an antenna arranged behind a stack of books in a shelf in such a way that electrical waves in a perfect state of balance, flow between the antenna and the bookcase.

When a person comes within two feet of any of the books the state of equilibrium is disturbed and a high frequency current is set up. This current produces a light signal which can be located in a janitor's office or in any other suitable room.

McCaleb sees possibilities for his new burglar alarm as a fool-roof device to protect safes and vaults but he has not yet experimented fully on the subject.

Want to keep up with breaking news? Subscribe to our email newsletter.

Tags