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Who made it possible to quit using oil lamps as a source of light?
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∙ 13y ago
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∙ 13y ago
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Which invention do you think had the greatest impact on western expansion?
The iron and steel versions of The Jefferson Plow could turn the soil and make farming not only possible but much easier as the American frontier moved westward. On the same type of land where Latin Americans built Haciendas and kept cattle using the Landfundia approach, Americans built farms. The plow made the difference possible.
What historian using the historical thinking skill of chronological thinking might?
Using a timeline... battlefield. Apex
Why did people stop using covered wagons?
In the 19th century, the intercontinental railway drove using a wagon to get to the west obsolete.
When did humans start using time?
As soon as there was time, people were using it, dividing their activities according to day and night, for instance.
When people started using money?
People have been using "money" since the first civilazation. (Mesopotamia.) What currency of money are you looking for?
Where can you get a light source in runescape?
Candle Can be bought form Catherby, where as lamps, you can make using crafting skill.
Between fluorescent and incandescent which saves electricity?
Fluorescent lamps deliver more visible light than incandescent lamps using electric power at the same rate. (But incandescent lamps deliver more heat. Just depends on what purpose you're using light bulbs for.)
What would it be like without light?
Without light bulbs, we would still be using gas or oil lamps. Without those lamps, we would be in darkness for half the day.
How many types of lamps are there?
There are many different types of desk lamp, ranging from lamps using traditional tungsten (or enerygy saving bulbs) to lamps using the more powerful halogen lamp. These are usually used where brighter light is required.
What are the benefits of using LED lamps?
Lamps using LED bulbs are more energy efficient than lamps that use traditional light bulbs. LED bulbs last over 25 times longer than regular light bulbs. Though they may cost more at the outset, the cost of usage of LED lamps is much less over time.
How many types of desk lamps are there?
There are many different types of desk lamp, ranging from lamps using traditional tungsten (or enerygy saving bulbs) to lamps using the more powerful halogen lamp. These are usually used where brighter light is required.
What is one benefit of using a fluorescent light source?
Consumes less energy that the equivalent incandescent light source.
What is the size of the shadow and the distance of the object from the light source when a shadow is formed?
If you are using a point light source, the shadow's size is the object's size divided by the distance from the light source to the object multiplied by the distance from the light source to the shadow.
Why is the street light yellow not white?
They are yellow because they are sodium lamps, using sodium vapor. They are very efficient in terms of visible light output per watt.
What type of energy source is the sun using to make the light it sends us?
heat and light
Is it possible to see an atom using visible light?
No, it is not possible because the size of an atom is smaller than the wavelength of light.
What is the advantage of using larger lamps instead of smaller lamps?
The area of illumination is larger.
