Physics helpp (1 Viewer)

[surfer/em]

i need help with a question

discuss some of the physics principles used in ONE of the following applications of technology;
- global positoning system
- CD technology
- DVD technology
- the internet

also what are the physics principles??

thanks

 

[ratcher0071]

i need help with a question

discuss some of the physics principles used in ONE of the following applications of technology;
- global positoning system
- CD technology
- DVD technology
- the internet

also what are the physics principles??

thanks

Basically you just explain how ONE of these things work. Refer to your textbook.

 

[surfer/em]

Basically you just explain how ONE of these things work. Refer to your textbook.

ye... about that ... it doesnt say anything abot it

 

[ratcher0071]

i need help with a question

discuss some of the physics principles used in ONE of the following applications of technology;
- global positoning system
- CD technology
- DVD technology
- the internet

also what are the physics principles??

thanks

GPS
Go to this link:
http://en.wikipedia.org/wiki/GPS#Basic_concept_of_GPS_operation

CD
Go to this link:
http://en.wikipedia.org/wiki/Cd#Physical_details

DVD
Go to this link:
http://en.wikipedia.org/wiki/Dvd

The Internet
Go to this link:
http://en.wikipedia.org/wiki/Internet#Internet_protocols

 

[-tal-]

i need help with a question

discuss some of the physics principles used in ONE of the following applications of technology;
- global positoning system
- CD technology
- DVD technology
- the internet

also what are the physics principles??

thanks

GPS - a satellite receives a signal (think parabolic reflectors). The GPS satellite (the one that recevied the signal) measures the wavelengths etc. and measures the distance to the point that sent the signal. This distance is sent to another 2 satellites, which both measure the distance. They then triangulate to pinpoint the location.

I hope that made sense.