The US Customs Service is testing a handheld detector designed to catch
smugglers. The detector can distinguish different metals and see inside sealed
containers. An eddy current sensor measures the flow of electrical currents
through a metal and from the rate of flow it can identify the metal. A second
sensor transmits ultrasound and by timing the echoes works out the distribution
of objects inside a container.
More from 91av
Explore the latest news, articles and features
Life
Largest-ever octopus was great white shark of invertebrate predators
News
Technology
Do you need to worry about Mythos, Anthropic's computer-hacking AI?
News
Health
Catching a cold can delay cancer from spreading to the lungs
News
Health
Huge study reveals how Epstein-Barr virus may cause multiple sclerosis
News
Popular articles
Trending 91av articles
1
The monstrous number sequences that break the rules of mathematics
2
Why the right kind of stress is crucial for your health and happiness
3
Game theory explains why the US's goals in Iran keep changing
4
Huge study reveals how Epstein-Barr virus may cause multiple sclerosis
5
Exercise advice for long covid may be doing more harm than good
6
Largest-ever octopus was great white shark of invertebrate predators
7
Fermat's Last Theorem: still a must-read about a 350-year maths secret
8
A whole new way to prevent death from sepsis shows promise
9
Do you need to worry about Mythos, Anthropic's computer-hacking AI?
10
We might finally know how to use quantum computers to boost AI
