Protection against noise Slideshow Play

Proton NMR spectrum of propanal Animation Play

Pulsar signal Whiteboard exercise Play

Radio waves and microwaves Student activity Play

Recording a proton NMR spectrum Student activity Play

Recording of analogue and digital signals Animation Play

Recording proton NMR spectrum of propanone Animation Play

Representative values of chemical shifts Animation Play

Resistance to disturbances Animation Play

Resonance Student activity Play

Resonance Student activity Play

Resonance Animation Play

Resting and action potentials of a neurone Student activity Play

Satellite navigation systems Whiteboard exercise Play

Satellite navigation systems Student activity Play

Satellite telephony Slideshow Play

Satellite television Student activity Play

Satellite television Slideshow Play

Satellite television Whiteboard exercise Play

Sending information to the environment Student activity Play

Signal as an information carrier Animation Play

Signal encoding Class activity Play

Signal encoding Whiteboard presentation Play

Signals are not a language Slideshow Play

Singing Student activity Play