Theory is something that nobody believes, except the author. The experiment - what believe everybody except its author.

  • If the facts do not support the theory, they should be forgotten.
  • The number of hypotheses to explain certain phenomenon is inversely proportional to the volume of knowledge about it.
  • If you do not understand a word in a technical text, do not pay attention to it. The text does not lose its meaning and without that word.
  • Working on the solution of the problem is going better if the answer is known.
  • Inside every large problem is sitting another than that all the time is trying to climb out.
  • Any error if it can get into the calculation, falls into it, and causes the greatest harm.
  • In any formula constants (especially those that come from technical manuals) should be considered as variables.
  • The first 90% of the work is consuming 10% of the time, and the last 10% fof the work - 90% of the time.
  • There is no impossible work, especially if it is done by the someone else.
  • If the experiment is successful, you probably used the wrong setting.
  • If the experiment was a success, that something is not right.
  • Any experiment is repeated until it was trying to recreate in another laboratory.
  • Never attempt to repeat a successful experiment.
  • The smaller the seemingly change in the project, the greater will be its impact in the future and the more drawings need to be modified.
  • If persistently damage the device, it will collapse.
  • Experience grows directly with the loss of equipment. In this case, the more expensive the equipment out of service, the more valuable experience.
  • Any tool, when it missed, rolled into the most inaccessible place of the room. In this case, first he will definitely hit you on the leg.
  • When searching for items that fell from the desktop, the probability of finding it is directly proportional to the size of the parts and is inversely proportional to its value to complete the work.
  • The device is protected by a fuse will protect the fuse burning out first.
  • After removing the last of the 16 bolts, it turns out that the cover to be removed is another.
  • After the last of  the 16 bolts is installed, it turns out  that the gasket is forgotten to be put under the cover.
  • If according the draw one need to assemble the unit from N parts, it turns out that there are only N-1 of them. In this case, there is no item can not be replaced by any other.
  • After the final assembly of the device on the desktop will remain unnecessary details.
  • If all else fails, read the instructions at last!

Author: Prepared by Igor Yashkin