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You can use Morse Code. The Navy uses Signal Lamps, which are lamps that produce concentrated, focused pulses of light. But you could just use a flashlight, depending on what you were communicating and the the circumstances of your predicament.
What else can I help you with?
How much power was used by the transmitter on the Voyager spacecraft to communicate with Earth?
The transmitter on the Voyager spacecraft uses about 23 watts of power to communicate with Earth, which is equivalent to the power used by a typical refrigerator light bulb. This is necessary because of the vast distance and weak signal strength encountered in deep space communication.
What is used to capture light in phocynthesis?
Pigments such as chlorophyll are used to capture light in photosynthesis. These pigments absorb light energy and convert it into chemical energy, which is used to drive the process of photosynthesis in plants.
How is a glow stick like a firefly?
Both glow sticks and fireflies produce light through a chemical reaction. Glow sticks contain chemicals that generate light when mixed together and fireflies produce light through a process called bioluminescence. Both use this light to attract mates or prey and communicate with others of their species.
What was used for light in the 1600s?
what was used for lighting in the 1600's
Can ultraviolet light be used to identify willemite?
Yes, ultraviolet light can be used to identify willemite, a mineral that usually shows a green fluorescence under short-wave ultraviolet light. This fluorescence property is a key characteristic used in mineral identification.
Can ultra violet light be used for mobile phone communications?
no only mobile phone can communicate lights can't. :)
What pens can communicate with the computer?
You can communicate with computers using the Light Pens And Graphics Tablets.
What is the fastest speed you can communicate in?
The speed of light.
What do fireflies use to communicate with each other?
That what the light they produce is for. They use it to communicate and to find mates.
What do boats use to communicate silently?
Boats (people) can communicate silently with flags or light signals.
How do you communicate with light?
you have a bum with a 3 yead old then you see loads of blue light everywhere
What allows a computer to communicate with another device with a beam of light?
Fiber Optic networking allows computers to communicate with a beam over light oven thin strands of glass cabling.
What tools did the Egyptians use to communicate?
the egyptians used a fether and ink to communicate
What was hiroglyphics used for?
they were used for people back in time to communicate like in Egypt would use them to communicate or write on walls.
How did the government used to communicate?
They didnt.
What is hotmail used for?
to communicate with your friends
How do microwaves communicate with satellites?
the top reaches the bottom and sees the light and reflacts
