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Thomas Edison

Born in 1847, Thomas Edison was a famed American inventor. He is credited with the invention of the practical light bulb, as well as phonograph and motion picture camera.

2,571 Questions

Why is a light bulb in 1 shape?

A light bulb is typically in a round or pear shape to protect the delicate internal components, such as the filament and gases, and to allow for efficient light distribution. The shape also helps to disperse heat generated by the bulb and to maximize light output.

Are electrons pushed more strongly in an electric stove or in a light bulb?

Electrons are pushed more strongly in an electric stove compared to a light bulb because electric stoves require more power to heat up the coils or elements to high temperatures for cooking, while light bulbs use less power to produce light. The higher power requirement in an electric stove results in a stronger push on the electrons flowing through it.

Can a light bulb make you sick?

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.

How did isaac newton work on light before electricity was invented?

Isaac Newton conducted experiments with light using prisms and observed how light could be separated into different colors through the process of refraction. He also proposed that light could be made up of particles rather than just waves. These experiments and ideas paved the way for the development of the wave-particle duality theory in modern physics.

What lasts longer a dimmed light or a fully powered light?

The mechanism that fails in an incandescent lights is the filament. It degrades over time because of current flow. Hence, you would expect the dimmed light (less current) to last longer. This would not necessarily be true for other types of lights.

What is the reasoning for the 1st electric light invention?

The first electric light was invented to provide a safer and more efficient alternative to traditional oil lamps and candles. It was also seen as a way to improve indoor lighting for homes and businesses, as well as to extend the hours of productivity and leisure activities after dark.

Which is hotter an electric fire or a light bulb?

An electric fire has a wattage of between 1 and 3 kw depending on the model - a light bulb can be anywhere between 40 and 120w.

So an electric fire is a lot hotter.

Another Answer

If, by 'hotter', are referring to temperature, then lamps operate at a far higher temperature than an electric fire (white hot vs red hot!). If, by hotter, you are referring to the amount of energy consumed, then electric fires win!

Which of the areas of technology best classifies the light bulb?

The incandescant light is more of a heat bulb than a light bulb, being 200% less efficient (on average) in producing the same amount of light (measured in lumens) than a fluorescent bulb.

That being said, the light bulb would be considered part of a luminaire.

Why does a bulb not light if it is connected only to the positive point of the cell although electricity has passed through the filament?

This is because electric current needs a complete circuit or path to flow through so the current will not have anywhere to go from the negative end of the cell in the scenario that you described.

What will happen on lighting a bulb during day?

A normal light bulb will light up in exactly the same way, using exactly the same amount of power and giving exactly the same amount of light whenever you light it.

The only difference is, if you light the bulb in a dark place, or at night, it will brighten the dark area. If you light the bulb in an already bright place, or in daylight, it won't change the ambient brightness: it'll just waste power.

If a light bulb fell on your head would you die?

It is unlikely that a light bulb falling on your head would be fatal, unless it was from a great height or had some other contributing factor. In most cases, it would likely just cause a minor injury or a bump on the head.

How many hours did Thomas Edison's first light bulb stay on?

Thomas Edison crowns 14 months of testing with an incandescent electric light bulb that lasts 13½ hours

What challenges were faced by thomas Edison when he made the light bulb?

Thomas Edison faced challenges such as finding the right filament material that would last long enough to provide practical lighting, creating a vacuum inside the bulb to prevent oxidation of the filament, and developing a suitable power source to supply continuous electricity for lighting. He conducted numerous experiments to overcome these obstacles and eventually succeeded in inventing a long-lasting, commercially viable incandescent light bulb.

What was the purpose of Thomas Edison's light bulb?

The purpose of Thomas Edison's light bulb was to provide a practical and safe source of artificial light that could be used for various applications like indoor illumination, street lighting, and industrial use. It revolutionized the way people lived and worked by extending the hours of productivity and leisure after sunset.

What problem did Thomas Edison encounter when he invented the electric light bulb?

Thomas Edison encountered the challenge of finding a long-lasting, practical filament material that could sustain a stable light output without burning out quickly. He experimented with various materials before discovering that a carbonized bamboo filament worked effectively.

Was Thomas Edison fat or thin?

Thomas Edison was a thin man throughout his life.

In 1800 Humphrey Davy invented the first electric light bulb. What scientific discovery made Davy's invention possible?

Humphry Davy's invention of the first electric light bulb in 1800 was made possible by Alessandro Volta's invention of the electric battery in 1800. The electric battery provided a stable and continuous source of electric current needed to power the light bulb.

How did the light bulb make Thomas Edison famous?

Thomas Edison became famous for inventing the first practical and commercially viable incandescent light bulb. The invention of the light bulb revolutionized the way people lived and worked by providing a reliable and safe source of artificial light, leading to widespread adoption and making Edison a well-known figure in history.

What color lips does Thomas Edison have?

Thomas Edison's lips are typically depicted as being pale pink or a natural flesh tone in historical photographs and paintings.

What were the scientific process that thomas alva Edison followed with his light bulb experiment?

Thomas Edison's approach to developing the light bulb involved systematic experimentation and testing different materials for the filament until he found one that lasted long enough. He also worked on improving the vacuum inside the bulb to prevent the filament from burning out quickly. This process of trial and error eventually led to the successful invention of the long-lasting electric light bulb.

How many hours did Edison light bulb lit?

It is rumored that Edison's carbon filament light bulb, demonstrated in 1879, burned for over 40 hours. However, this was not the first light bulb ever created, as other inventors had developed similar technology prior to Edison.

What was the key factor in Thomas Edison and success in designing the light bulb What were some of the new things that were possible because of this invention?

One key factor in Thomas Edison's success in designing the light bulb was his perseverance through numerous experiments to find the right material for the filament. The invention of the light bulb revolutionized society by enabling longer work hours, increased safety through lighting up streets and homes, and improved overall quality of life with extended hours for leisure and productivity.

How many times did Thomes Edison take to make the working light bulb?

Thomas Edison and his team made over 1,000 attempts before successfully creating a practical and long-lasting light bulb in 1879. This process involved testing different materials for the filament and improving the vacuum inside the bulb to prolong its lifespan. Despite the numerous failures, their persistence eventually led to one of the most significant inventions in history.