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Steam RadiatorsElectric RadiatorsTraditional radiators are powered by steam or hot water. Aboiler in the basement of a building heats pressurized water to an extremely high temperature, turning it into steam. As the water turns into a gas, it expands and becomes less dense, which causes it to flow up through steam tubes into radiators in the building. As the water flows through tubes inside the metal radiators, some of its heat is transferred into the metal. This gives the radiator the heat it needs to warm the room and cools the water, which then flows back to the boiler to be heated again.Electric radiators are powered by a heating element. Heating elements are actually specialized resistors--devices that resist the flow of electricity. When electric energy flows into a resistor, it is turned into heat. The heating element in a radiator is usually suspended in oil, which conducts the heat away from the element. The heat then flows out into the metal body of the radiator and from there, into the room.
because bent tube does not reflect light back .moreover light travels in a straight line
pornn!
For the same amount of metal, hollow tubes are much stronger than solid tubes.
Hollow tubes is an redundant expression. Tubes must be hollow, by definition. However tubes can be filled with something so they are not "empty" (they still will be hollow).
Air enters through the mouth or nose and travels through the trachea then it flows through the large tubes called what?
No animals breathe through air tubes, but insects respire via tubes.
Through its gills.
Arteries, vessels and veins.
no
There are a number of tubes that help you breathe. The bronchial tubes are the largest.
Blood vessels are any of the tubes through which blood flows through the body.
Intake Manifold
the water scorpion breathes basically by using a biological reed that sticks out of the water
Animals breathe in many ways: through body coverings, gills,tubes in their body, and lungs.some with lungs others with gills
Sand dollars breathe through a process known as diffusion, using their tube feet.
They breathe through breathing tubes that will stick out of the water to get oxygen from the air.