Americium 241 (not Am 247 ) is an artificial isotope with a long half life - 432,2 years - and a gamma ray emitter. Being a strong gamma emitter it can be used for gamma radiography of materials and for thickness gauges.
remote sensing
Remote sensing is the examination or the gathering of information about a place from a distance. Such examination can occur with devices (e.g. - cameras) based on the ground, and/or sensors or cameras based on ships, aircraft, satellites, or other spacecraft.
Infrared waves from the electromagnetic spectrum are used in heat lamps and heat sensing devices.
A modern seismograph typically consists of multiple sensing devices, called seismometers or accelerometers, which are strategically placed to detect ground motion caused by seismic waves. The number of sensing devices can vary depending on the configuration and sensitivity required for the specific application.
The new remote sensing devices have picked up a party of five, crossing our sector on foot.
satalites, and space ships with sensers.
dupang kau
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Explain how the remote sensing satellites examined the earth from the space?
Infrared waves from the electromagnetic spectrum are used in heat lamps and heat sensing devices. These waves are able to transfer energy as heat when absorbed by an object and are commonly used in applications where heat is desired, like in infrared heaters and thermal imaging cameras.
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remote sensing.