The first inventors of the light bulb, Henry Woodward and Mathew Evans, faced which of the following problems?
The device was not very long lasting
The gas used in the light bulb was polsonous
The patent they tried to file for their invention was not accepted.
The nitrogen gas caused the light bulb to explode,

Answers

Answer 1

Answer:

The device was not very long lasting

Explanation:

Henry Woodward and Mathew Evans were two British scientist who invented first light bulb in 1860.

The challenge they faced while inventing light bulb was the log lasting light filament. Earlier filament was made up of carbonized paper which was not long lasting and has light for very less time period. Later they solve it by making carbon fiber filament derived from cotton and got patent for the same invention. But then because of financial issues they sold their patent to Edison.

Hence, the correct answer is "The device was not very long lasting".


Related Questions

A tee requires three studs and three cripples.
O TRUE
O FALSE

Answers

Answer:

will you please explain more?

Answer of the question a tee requires three studs and three cripples :
True

please help, I'm so confused I've never done this​

Answers

Answer:

yeah, your right its demand

In the car industry, clay models are used to visualize and test new car designs.

True
False

Answers

False hope this helps out
False, they use technology like computer programs to visualize their models

1. How is high-speed internet typically transmitted around the world? over telephone wires b. through fiber optic cables c. beamed wirelessly to homes d via satellites​

Answers

Answer:

High speed internet is typically transmitted around the world;

b. Through fiber optic cables

Explanation:

High speed internet is typically transmitted through fiber optic cables such as the Submarine Cables that makes connection through two cables that connects USA to Europe over the Atlantic Ocean, and the Middle East to Europe Terrestrial Cable Systems (MEETS) which is a cable network of 1,400 km and is being built to have an initial capacity of 200 Gbps

Other example of fiber optic cable assisted internet broadband transmission are the Diverse Route for European and Asian Markets (DREAM) terrestrial cable that connects Germany, Kazakhstan, Russia, and China, TEA NEXT that provides connection between borders on the East and West of Russia and Euro-Russia-Mongolia-China (ERMC) terrestrial cable

High-speed internet typically transmitted around the world through the use

of fiber optic cables.

Fiber optic cables

These are connections which help transmit internet from one place to

another. It is a very fast method with a very low lag time. This is why it's used

for high speed internet transmission.

These cables are also able to withstand high traffic while other forms can't

do it thereby making option B the most appropriate.

Read more about Fiber optic cables here https://brainly.com/question/116766

Search for the Heart of the Sea ! Use the blue and red coral to reach the treasure chest. Only use 9 blocks, please help due in a hour.

Answers

fyyyodritsisstiistditstieistisdistiesties5ies5iei5s5

A. What is the total current of this circuit?

B. What is the current at Lamp 1?

C. What type of circuit is this?

D. What equation rule do we follow to determine total current and currents at Lamp1 and R1 (Look at the equations above)

E. What is the total resistance?

Answers

A. 0.36 amps
B. 0.36 amps
C. Series Circuit
D. Current always stays the same in a parallel circuit, and you can prove this by dividing total voltage by total resistance (V/R)
E. 15 ohms+10 ohms= 25 ohms

Describe carbonation as it applies to the four-stroke engine.

Answers

Carbonation is more of a healer to the engine
Carbon is a healer and it applies to many helpful things

Pretend 1% of the population has a disease. You have a test that determines if you have that disease, but it’s only 80% accurate and 20% of the time you get a false positive. Your test comes back positive. How likely is it you have the disease?

Answers

Answer:

3.88% of the time

Explanation:

Julio has a personal website where he puts up the scores of ball games he organizes in his neighborhood. A friend tells him that he doesn't need to update the HTML file after each game. He can instead put the scores in a different file and display it from the HTML.
What file format should he put the scores in?
A. JavaScript
B. CSS
C. XML
D. DHTML

Answers

XML is the answer I think.. if it’s wrong then I’ll pay you

Answer:

XML would be the answer.

Explanation:

I believe that this is right on at least edmentum.

Automobiles have been in use for:
A) Approximately 50 years.
B) Since the 1950's.
C) Over 100 years.
D) Approximately 75 years.

Answers

Over a 100 years since the year regarded as the birth of the car was 1886 by Karl Benz. Cars has only been in global use since the early 2000’s

What is the structural stability formula?

Answers

Answer:

[tex]K=2J-R[/tex]

Explanation:

Let [tex]R[/tex] denotes the number of sides of a triangle.

Let [tex]J[/tex] denotes the number of joints.

Let [tex]M[/tex] denotes the number of members.

Let [tex]K[/tex] denotes the unknown to be solved.

Now write the structural stability formula:

[tex]K=2J-R[/tex]

Here, design is stable if [tex]M=K[/tex]

Design is unstable if [tex]M<K[/tex]

Design is indeterminate if [tex]M>K[/tex]

What is a combination circuit? A combination circuit:

Answers

Answer:

Combination circuit; The basic strategy for the analysis of combination circuits involves using the meaning of equivalent resistance for parallel branches to transform the combination circuit into a series circuit.

Example:

The use of both series and parallel connections within the same circuit. In this case, light bulbs A and B are connected by parallel connections and light bulbs C and D are connected by series connections. This is an example of a combination circuit.

It is the responsibility of every employee to ensure that tools are used ____ and____.

A.Properly and Safely

B.Quickly and safely

C.Properly and quickly

D.With supervision and permission

Answers

A. Properly and safely
Hoped this help you:))

why it is important to clean all mixing equipment out after mixing paint?​

Answers

Answer:

Explanation:

It is important to clean your equipment to

1. Make it look good (like who wants dirty equipment right?)

2. You are at risk of leaving paint, which can get mixed into future paints, causing an ugly color.

3. If there are any toxic chemicals in the paint, it is good to clean them out just to make sure.

1.who wants dirty looking things
2.the chemicals could effect other

Engineers use the following tools to perform their duties. science and math, math and English, science and English, math science , and English​

Answers

They use math, science, and technology

I wold say they use math, physics, and science primarily

Which of the following describes the powertrain?
A) The components that generate power.
B) The structural framework of the vehicle.
C) The components of the vehicle that transfer power.
D) The components that power the electrical systems.

Answers

d ) the components that power the electrical system

PLZZZZZ BRAINLEST FOR EVERYONE (science)

Answers

Answer:

A because it's positioned at the hilltop, which results in an increased in kinetic energy. you can actually apply this to the real world by placing a marble on a steep hill, then try to place it on a flat surface.

Why might a hospital patient prefer to interact with a person instead of robot?

Answers

A person would prefer to be able for the doctor/ nurse to visually see their symptoms and the problem, which a robot can not do, which would lead to a misdiagnosis

What is a relatively inexpensive way to communicate product ideas?
O training marketing personnel to describe product components
O drawing a simple sketch or model
O building a complete prototype
O creating a three-dimensional version of the product using CAD software

Answers

Answer:

B

drawing a simple sketch or model

Explanation:

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