RacheleMurnan RacheleMurnan

04-09-2014
History

contestada

The first light bulb had a filament made of _____.

Respuesta :

mashenka mashenka

04-09-2014

Filament of the first light bulb was made of carbonized piece of cotton. It was invented by Thomas Edison in 1879 and the lifetime of this light bulb was approximately 13 hrs.

Answer Link

Otras preguntas

If A ⊂ B, then A ∩ B = A ∪ B. always sometimes never

Ac=3x+6 and CD=2x+14 what is the value of x

standard form of the equation of a hyperbola that has vertices at (-10, -15) and (70, -15) and one of its foci at (-11, -15).

What inference can be made about Lady Capulet and Lady Montague from this dialogue?

What is the conflict in who moved my cheese

You get lost and need shelter. what should you do first?

The length of a rectangle is 4 inches more than its width. The area of the rectangle is equal to 4 inches less than 5 times the perimeter. Find the length and w

Explain why england was slow to enter the colonization race and what factors finally led it to launch colonies in the early seventeenth century.

The equation y = 0.75x + 10 describes the cost, y, of placing an ad with x words in the classified section of a newspaper. How many words are in an ad that cost

How do you add subtract multiply and divide complex numbers and polynomials