A low-cost, portable, person-to-person, communication network to let civilians communicate with one another using their smartphones without relying on cell or Wi-Fi signals, or external power.
[E]
Designing a Laser Communication Device
[E]
Test which wire/string transmits audible sounds the best.
[E]
What Are the Effects of Weather on Laser Communications? (Free-Space Optics)
[E]
[E]
The invention of the telephone: repeat Alexander Graham Bell's experiments.
[E]
Lunar Communication: Determining Laser Power Needed
[E]
[C]
A Comparative Study of the Reception Power of Different Cell Phone Companies
[E]
[E]
The Signal Attenuation Coefficient of Fiber Optic Cable
[E]
[E]
[E]
Which Is Faster: DSL or Cable?
[E]
Cellular technology and its dangers
[E]
How Much Cell Phone Towers Are Needed in a Location?
[E]
The loss in frequency and amplitude of an audio signal when transmitted through a fiber optic cable at different degrees of bend diameter
[P]
Compare the reception of different cell phones in different locations
[E]
Find out which is affected greater by changes in temperature - fiber optic cable or copper wire?
[E]
Radio & Wireless Science Fair Projects
Telephone Related Circuits