Imagine you are riding on a roundabout, with a lamp post in the middle of it. As you are riding you look upwards at the lamp, and it always seems to stay in the same place as everything else goes round you. In normal life the Earth is our roundabout and the Pole star is the lamp. It is called the pole star because it is in line with the Earth's north and south poles, on a line that we can call the lamp-post.
Not yet possible
No, a starter must be used.
Lamps do not produce electrical energy, they consume it. The voltage at a lamp depends on the voltage of the local supply. That can be switched on or off to each individual map, or groups of lamps if required.
This type of circuit would never be used. The two way fluorescent system would depend on the voltage being supplied by the two lamp circuit switch. If the switch turns off the two lamp circuit the rest of the circuit with the fluorescent fixture would become inoperable.
The difference between a pole lamp and a normal lamp is very miniscule. A pole lamp stands on a pole and the lights are strung up like they are on a tree.
Imagine you are riding on a roundabout, with a lamp post in the middle of it. As you are riding you look upwards at the lamp, and it always seems to stay in the same place as everything else goes round you. In normal life the Earth is our roundabout and the Pole star is the lamp. It is called the pole star because it is in line with the Earth's north and south poles, on a line that we can call the lamp-post.
Not yet possible
No, a starter must be used.
a telephone pole, a building, a tree, a street lamp, etc.
In Atlanta, GA, it is illegal to tie a giraffe to a telephone pole or street lamp.
The flag pole height should be in proportion to the flag. It's not the same in all countries. So if you have a big flag pole you must have a big flag. Think about it. A super high flag pole with a tiny flag. How stupid would that look.
Not if it's erected by a private individual. If a local government jurisdiction places it there, yes, of course.
The Pottery Barn Kids Fishing Pole Floor Lamp & Shade is fairly safe.
look up at the top middle of the room see the ceiling lamp? the golf club is the pole
A pole casting a shadow 49 feet long with an angle of elevation of the sun of 44.8 degrees is 50 feet tall. (47.98 rounded to two places)Tangent (theta) = opposite / adjacentTangent (44.9) = X / 49X = 47.98This does not take into account the curvature of the earth, but the error in this example is inconsequential, specifically an elevation error of about 0.015 percent.
The photocell would typically control a relay. The power to the lamp would go to one pole of the relay and the lamp to the other. The common wire and ground would go directly to the lamp. The relay would be normally open and would close when the light energy on the photocell decreased to an amount that would trigger a circuit to close the relay.