Advanced Placement (AP), 27.07.2019 06:00 gunnatvinson

Explain the invention and innovation of the light bulb. identify key individuals at each stage of advancement.

Answers: 1

Show answers

Answers

More than 150 years ago, inventors began working on a bright idea that would have a dramatic impact on how we use energy in our homes and offices. This invention changed the way we design buildings, increased the length of the average workday and jumpstarted new businesses. It also led to new energy breakthroughs -- from power plants and electric transmission lines to home appliances and electric motors.

Like all great inventions, the light bulb can’t be credited to one inventor. It was a series of small improvements on the ideas of previous inventors that have led to the light bulbs we use in our homes today.

Answer from: getsic

Sir Humphry Davy, an English chemist, invented the first electric light in 1809. Davy connected two wires to a battery and attached a charcoal strip between the other ends of the wires. The charged carbon glowed, making the first arc lamp. Much later, in 1878, Sir Joseph Wilson Swan, an English physicist, was the first person to invent a practical electric light bulb (it glowed for 13.5 hours). This innovator built on the work of the many, many scientists before him who had improved on the original electric light. He found that a carbon paper filament worked well, but burned up quickly. Thomas Edison placed his carbon filament in an oxygen-free bulb. (Edison based his designs for the light bulb on the 1875 patent he purchased from innovators Henry Woodward and Matthew Evans.) Edison’s 1879 bulb could be used for 40 hours without burning out; by 1880, his bulbs could be used for 1,200 hours.

Explanation:

Answer from: Quest

After spending all that time on the research then by all means modify the hypothesis or aim by reporting such. for example the findings did not bring forth what was expected but brought about different yet interesting findings worth exploring so the hypothesis is changed to reflect this new findings.

i may be way off but.

Answer from: Quest

answer:

lots of slipknot and system of a down

devil in i for slipknot, sugar for system of a down

Another question on Advanced Placement (AP)

Advanced Placement (AP), 23.06.2019 17:30

Analyze the map above. using complete sentences, discuss the population distribution of the united states. make sure to address the issue of climate and at least one other factor that has created such an uneven population distribution throughout the region.

Answers: 3

Answer

Advanced Placement (AP), 25.06.2019 06:30

You are only allowed to use tutors that your school recommends. t / f

Answers: 2

Answer

Advanced Placement (AP), 25.06.2019 14:10

Arecent strip mall land development project included large amounts of paved surfaces. as a result of this project, groundwater levels in the developed area will most likely a. increase due to sealed artesian wells b. decrease as aquifers are not recharged c. decrease due to decreased surface runoff d. increase due to loss of unconfined aquifers e. increase due to a decrease in demand for fresh water

Answers: 2

Answer

Advanced Placement (AP), 26.06.2019 03:30

Question 4 which was a foundation of the industrial revolution? a) large states held huge supplies of raw materials. b) coal replaced wood as the primary source of fuel. c) road infrastructure replaced waterways for transport. d) mercantilist policies drove down the price of goods. question 7 which was not a government response to the socialist challenges? a) establishing universal suffrage to all classes b) introducing medical insurance and pensions c) prohibiting underground employment for women d) restricting child labor for children under ten years old question 9 which was a cause of the boer war? a) movement and settlement of bantu peoples into afrikaner-populated states b) independence of northern afrikaner territories from british colonial authority c) evacuation of most afrikaner people out of south africa and back into europe d) british reconstitution of afrikaner-held territories into the union of south africa

Answers: 3

Answer

You know the right answer?

Explain the invention and innovation of the light bulb. identify key individuals at each stage of ad...

Questions