How to explore inaccessible places by swarms of sensors

Since the dawn of humankind, exploration of certain places, ranging from the depths of the oceans to the edges of the universe, has led to numerous discoveries. However, there are also several environments that need to be ...

Sensor awakens only in the presence of a signal of interest

Here's your task. Build a tiny sensor that detects a signature of infrared (IR) wavelengths characteristic of a hot tailpipe, a wood fire, or perhaps even a human being. Design the sensor so that it can remain dormant and ...

Five ways nanotechnology is securing your future

The past 70 years have seen the way we live and work transformed by two tiny inventions. The electronic transistor and the microchip are what make all modern electronics possible, and since their development in the 1940s ...

High-tech sensors help kids keep eye on aging parents

Each time 81-year-old Bill Dworsky or his 80-year-old wife Dorothy opens the refrigerator, closes the bathroom door or lifts the lid on a pill container, tiny sensors in their San Francisco home make notes on a digital logbook.

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