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Exposure to light during the night can affect melatonin level in the body and disrupt sleep, which is not healthy. Low levels of melatonin in the body may be linked to cancer.

Also, certain colors can cause health problems. Excessive exposure to blue light can lead to early macular degeneration in the eyes, one of the major causes of blindness in the elderly. Excessive exposure to UV light, such as from tanning bulbs, can cause sunburn, aging of the skin, eye injury, and even skin cancer.

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Do you use hair to make a light bulb?

No, hair is not used to make a light bulb. Light bulbs are typically made of glass or other transparent materials, with a filament made of tungsten or other metals that produce light when heated. Hair is not a suitable material for this purpose.


How much energy does a normal light-bulb make in comparison to a colored one?

Both normal and colored light bulbs typically have the same energy consumption in terms of electricity when producing light. The difference lies in the design of the colored bulb that filters out certain light wavelengths to produce colored light, which can make it appear dimmer compared to a normal bulb of the same wattage.


Who was the first person to create the light bulb and make it useful?

Thomas Edison is widely credited with inventing the practical and commercially viable incandescent light bulb. He demonstrated the first successful light bulb in 1879 and his innovations helped make it a practical and widely used technology.


What do you use to make a lamp or light fitting light up?

To make a lamp or light fitting light up, you typically use a light bulb or LED bulb. The electricity flows through the bulb's filament or semiconductor, causing it to emit light. This process is controlled by a switch that completes the electrical circuit when turned on.


Can a bulb light if electricity doesn't get to the bulb?

No, a light bulb will not light up if electricity does not reach it. Electricity is required to flow through the filament in the bulb to generate light. If there is no electrical current, the bulb will not illuminate.