Lamps Balanced By Pressure and Friction
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This construction is quite common in Italian lamps. Gravity causes the parallelogram to deform, making the gap between the long arms smaller. This increases pressure on the rubber in the gap, and the resulting friction holds the arm in balance. |
Read more about this topic: Balanced-arm Lamp
Famous quotes containing the words lamps, balanced, pressure and/or friction:
“The lamps are going out all over Europe; we shall not see them lit again in our lifetime.”
—Edward Grey, 1st Viscount Grey Of Falloden (1862–1933)
“With a balanced combination of the two principal energies from mother and father, a girl can both be in touch with her womanly strengths and be a powerful force in the world—strong and nurturing, decisive and caring, goal- oriented and aware of the needs of others. She has the courage to voice what she thinks and feels and the strength to follow her destiny.”
—Jeanne Elium (20th century)
“Under the pressure of the cares and sorrows of our mortal condition, men have at all times, and in all countries, called in some physical aid to their moral consolations—wine, beer, opium, brandy, or tobacco.”
—Edmund Burke (1729–1797)
“We have got onto slippery ice where there is no friction and so in a certain sense the conditions are ideal, but also, just because of that, we are unable to walk. We want to walk so we need friction. Back to the rough ground!”
—Ludwig Wittgenstein (1889–1951)