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How is the light bulb a useful invention?
The light bulb is useful because it lights up places!
What scientific findings led up to the invention of the first camera?
The scientific finding that led to the invention of the first camera was that light could catalyze a chemical reaction.
What does a light bulb consist of?
A light bulb consists of a glass bulb, a filament (or LED in the case of LED bulbs), metal contacts, and inert gases like argon or nitrogen sealed inside. When electricity flows through the filament, it heats up and produces light, illuminating the bulb.
How does a lemon power up a light bulb?
A lemon can power up a light bulb by acting as an electrolyte in a chemical reaction with the metals in the light bulb. When zinc and copper electrodes are placed in the lemon, a chemical reaction creates an electrical current that can power a small LED light bulb.
What did Edison's invention do?
Well Thomas Edison invented one main thing that changed mankind. He invented the light bulb. The light bulb (obviously) lights up the room if it is dark or makes a light place lighter.
What invention led up to the iPod?
The Walkman led to the invention of the iPod.
How light energy is used in a flashlight?
In a flashlight, light energy is generated by converting electrical energy from the batteries into light through a light bulb or LED. The electrical energy causes the light bulb filament to heat up and emit light, or activates the semiconductor material in an LED to produce light. This light energy is then emitted out of the flashlight to illuminate the surroundings.
What is the difference between a filamant bulb and an LED?
a filament heats up and is not as efficient due to heat loss versus an LED (light emitting diode)
What elements light up a light bulb?
argon is an element that make up a light bulb
How big does a lemon have to be to light up a long light bulb?
A lemon needs to be large enough to generate about 1.5-2 volts of electricity in order to light up a small LED bulb. A regular lemon from the store should be large enough for this purpose.
What is most energy efficient led lamps or bulbs?
The most efficient outdoor light bulb would the 5 watt Light emitting Diode light bulb also know as the LED bulb. They are small lights with miniature sockets or made to fit into conventional sockets.
Why is the light bulb a useful invention?
Because it lights up the world. Without it, other inventions also wouldn't be able to be invented, like our laptops.
