Following well-publicised spying scares at the Los Alamos National Laboratory
and elsewhere, the Pentagon has taken action to ensure that staff don’t
accidentally leave safe doors and secure filing cabinets open. A system it
commissioned from Pacific Northwest National Laboratory uses contact switches
built into cabinets and safes to detect when their doors are shut and infrared
sensors to check that bolts are in place. Data from these sensors is beamed by
radio to a unit built into the door of the room which also includes an infrared
sensor. Anyone leaving while the cabinet or safe is unlocked, triggers a…
To continue reading, today with our introductory offers
Advertisement
More from 51¶¯Âþ
Explore the latest news, articles and features
Popular articles
Trending 51¶¯Âþ articles
1
Mathematicians stunned by AI's biggest breakthrough in mathematics yet
2
We may finally know why dinosaurs like T. rex evolved tiny arms
3
The Selfish Gene at 50: Why Dawkins’s evolution classic still holds up
4
How I used psychology to come back from the worst year of my life
5
The distant world that is our best hope of finding alien life
6
Photos reveal unexpected details from the world's first atomic test
7
The ‘doomsday’ glacier’s giant ice shelf is about to break away
8
Mystery of the ancient giant stone jars of Laos may have been solved
9
Can we harness quantum effects to create a new kind of healthcare?
10
Colossal claims an artificial eggshell will help it bring back the moa
