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What else can I help you with?
Why did Thomas Edison want to invent the light-bulb?
Thomas Edison wanted to invent the light bulb to create a longer-lasting and more efficient source of light than existing options like gas lamps or candles. His goal was to provide a practical and affordable alternative for indoor lighting that could benefit society in various ways.
What is the purpose of the concave mirror behind the bulb in the flashlight?
You want a torch to emit light in a beam, in only one direction. But the bulb in the torch emits light in all directions, the mirror reflects the light going in the wrong direction(towards the inside of the torch) back out the front of the torch making it brighter. It is concave so as to focus the light more.
Did Thomas Edison invent the long-lasting light bulb?
Yes and no! Were talking filament lamps here only. Edison had nothing to do with fluorescents or LEDs. The longest lasting Edison light bulbs are very dim. Like a lot of things, it comes down to economics. When you buy a filament lamp you are interested in lumens x hours. Lumens is a measurement of the lamps brightness. Furthermore you want high luminous efficiency, that is lumens/watt, since the electric company sells you watts. So YES some of Edison's early lamps are still working, but that doesn't mean they were good. You can buy an Edison filament lamp on Ebay and screw it into a socket today. Very dim, bubela. 1878 Sir Joseph Wilson Swan was the first person to invent a practical and longer-lasting electic lightbulb.
Why does it take only one woman with PMT to change a light bulb?
The joke plays on the stereotype that women with premenstrual tension (PMT) can be moody or irritable, suggesting that they may want to change the light bulb themselves to ensure it's done correctly or to satisfy their own needs. It's a humorous way of poking fun at exaggerated perceptions of mood swings during that time of the month.
How a meter would be connected in a circuit to measure the voltage at a light bulb?
"Voltage" is the difference in electrical potential between two points in a circuit.If the voltage across the light bulb is what you want, then first make sure thatthe meter in your hand is a voltmeter, and then touch each probe of the voltmeterto one of the connections on each side of the light bulb.If you want to determine whether power is getting to the light bulb, you stillhave to do it by measuring the difference in voltage between two points. Youcould use your voltmeter to measure the voltage between one connection atthe bulb and one connection at the switch. If the power is getting from theswitch to the bulb, then the voltage between the switch and the bulb shouldbe zero (or very small).The voltage between the two connections to the switch should be zero whenthe switch is ON, and mains voltage (115 or 220) when the switch is OFF, etc.I have worked alongside individuals in the past who claimed that they coulddiscern the presence of voltage, and even measure it, by licking their fingerand touching it firmly to the circuit point in question. I don't know how manyof them are still alive, and I strongly recommend AGAINST that technique.
Why did Thomas Edison want to invent the light-bulb?
Thomas Edison wanted to invent the light bulb to create a longer-lasting and more efficient source of light than existing options like gas lamps or candles. His goal was to provide a practical and affordable alternative for indoor lighting that could benefit society in various ways.
Why thomas Edison inveted bulb?
because, he want to save the world
Which was invented first the light bulb the telephone or the microwave oven?
The light bulb was invented first by Thomas Edison in 1879. The telephone was invented by Alexander Graham Bell in 1876, three years before the light bulb. The microwave oven was invented much later, in 1946 by Percy Spencer.
Do you need a light bulb?
of course you do if you dont want to sit in the dark!!
You want one scientist and his invention?
Edison invented the light bulb.
What kind of light bulb is used in the type of bathroom light fixtures that is a row of round lights on top of a mirror?
On lighted vanity mirrors you want to use a vanity mirror light bulb. The bulb is very round where the light is produced and is not very long.
How much cost a 1900 light bulb?
i dont know ether if you get the answer can u send it to me plz
What can you use to cover a light bulb?
A electrical cord. If you have more questions go to Natalsiapatterson1@gmail.com
How many psychologists does it take to change a light bulb?
They can't do it... it has to learn to change itself.One. The bulb really has to want to change.
How many psychiatrists does it take to change a light bulb?
Only one! But the light bulb really has to want to change!Just one if they prescribe the correct medication for "Light Production Deficit Disorder."
Is there a gold light bulb?
Yes I have two of them I want to sell they are 6" globe
Why did Thomas Edison want to be a inventor?
ummmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm
