Using Radar to Detect and Identify Movement – Christmas Lectures with David Pye

Radars can be used to detect and identify all sorts of moving objects. David Pye demonstrates a handheld one and also shows how birds and planes can be detected.
Subscribe for regular science videos:

Watch the full lecture:

David Pye gave the 1985 Christmas Lectures “Communicating” about the incredible world of communication. From the man-made satellite dishes to the complex biological system of bat communication.

The third lecture, titled “The Bionic Bat”, where this clip is from, is all about sound and how it’s used for not just communication but also echolocation.

Watch the full series:

The Ri is on Twitter:
and Facebook:
and Tumblr:
Our editorial policy:
Subscribe for the latest science videos: