for experiment of simple vibration...the torsional oscillation of a flywheel...to find the moment of inertia..
2006-08-08 03:05:40 · 8 answers · asked by budak_kacak011 1 in Science & Mathematics ➔ Engineering
Because we're not as smart as we think we are.
2006-08-08 03:10:14 · answer #1 · answered by Samuel C 2 · 0⤊ 0⤋
Theoretical results usually use simplified calculations. A full set of equations is overly complex and too time consuming to utilize. Normally you attempt to eliminate factors that would have insignifcant impact on the theoretical result. Friction for instance is reduced from equations.
Similarly the objects being analyzed are not perfect. Mass, density, size, etc. is often close enough for function, but varies enough that it will have some impact in the real world. Real life is about imperfection and how you deal with it.
2006-08-08 22:01:11 · answer #2 · answered by Mack Man 5 · 0⤊ 0⤋
Theory can predict the acceleration of falling bodies quite accurately. And if you drop a lead weight, agreement with theory is reasonably close. However, if you drop a feather there is very little agreement with theory. Now, if you drop the lead weight and the feather in a vacuum filled large glass tube (al la Boston Science Museum?) they both drop at the same rate in excellent agreement with theory. Theory is often presented as a mathematical model that may neglect certain real world influences (such as air resistance). If movement of an object produces heat (due to friction?) you often will not obtain 100% efficiency due to the small loss of energy and result will differ from theory (or ideal conditions).
2006-08-08 10:53:57 · answer #3 · answered by Kes 7 · 0⤊ 0⤋
Theory assumes certain perfect situations and processes, which in practice may or may not happen.
A classic example is Weather Forecasting. A change of 1 degree in temperature or a slight shift in the wind direction - after all we cannot know how Nature can change - brings in rain when it has been forecast for a hot 100 degrees sweltering day - or vice-versa.
Change is the most unpredictable component in Life and all our prayers to God are based on requesting Him not to shock us with quick and dangerous changes.
2006-08-08 10:29:51 · answer #4 · answered by bagsprosh 4 · 0⤊ 0⤋
Theoretical results are based on what is called ideal. You learn in basic chemistry that when learning equations that everything is based on STP, which is standard temperature and pressure. The problem is that real life isn't ideal. Their are many other factors that change the results from what the theoretical results would be.
2006-08-08 10:31:28 · answer #5 · answered by slamster77 2 · 0⤊ 0⤋
If that is true, then there is something unaccounted for in the equation. There has to be a change agent of force, time, space, or mass.
2006-08-08 10:14:41 · answer #6 · answered by water boy 3 · 0⤊ 0⤋
No reality.
Reality involves experiences, interactions of people who have had differing sets of experiences.
Bring that into anything and it will always be different.
2006-08-08 10:21:43 · answer #7 · answered by elibw 3 · 0⤊ 0⤋
because real world conditions are not ideal
2006-08-08 10:16:15 · answer #8 · answered by jasonalwaysready 4 · 0⤊ 0⤋