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

Ayala Inc. has conducted the following analysis related to its product lines, using a traditional costing system (volume-based) and an activity-based costing sy

CAN SOMEONE PLEASE HELP ME???

3. Find the volume of the pyramid. 7 cm 3 cm 1 cm

The floor of a living room is 7m by 5m. How many 50cm square tiles are required?

Factor 2k^2+25k+72 completely

What does the meaning of the word fancied in the sentence

Please answer quickly!

please help with part b

In the early twentieth century , what was alexander fleming's hypothesis concerning the relationship between a yellow green mold and certain strains of bacteria

Ratnam hired a car from a car renting agency which charges a flat amount of Rs. x for travelling up to 50 kilometres and Rs. y per km for every kilometer travel