How to learn anything new quickly: 1) Find an expert (Real Life
  (tm) or Youtube.* Suspend your disbelief and trust their word as
  Gold. 2) Have them show you what they do / what they know / what
  you want to learn. 3) Whenever the smallest thing confuses you -
  a word or phrase you don't understand - a part of the process
  that doesn't make sense: Stop them immediately and ask
  questions, measure, try it out, look up more information on
  Wikipedia, find diagrams, other explanations of the same thing
  worded differently. Do not continue until you have grasped it,
  whether it takes you a few seconds, a minute, or a day.* If it
  is a point that you need to feel, touch or taste, then set up an
  experiment, take something apart, try to put something together
  - really GRASP it completely to your fullest satisfaction.* Put
  it in your own words, find analogies to other things you already
  know about. If you continue before you are absolutely sure you
  understand and fully comprehend something, you will find
  yourself slipping further and further before finally, you give
  up on the topic saying, "it's too difficult".* Don't.* See it
  through and don't let it be boring to you.* Find a 'hook" that
  makes it interesting for you. 4) When you do fully comprehend a
  point, allow them to continue (or press "play"). 5) Repeat steps
  2-4 until you are satisfied about the topic. 6) Teach somebody
  else what you have learned as soon as you can.* This CEMENTS
  what you have learned in your mind, for you learn more by
  TEACHING someone else than by learning it all just for
  yourself.** Learning comes from understanding, sharing and
  feedback.* That's a fact. I applied it to 'Dissecting an Engine"
  video.* Watched a few seconds.* Any term I did not know fully or
  understand, i looked up.* When I "got it", i reworded it, found
  an illustrative picture, and explained it on my status update on
  Facebook.* 'i learn, you learn'.* That 1/2 hr video I "digested"
  in tiny 20-30 second increments on and off throughout the day,
  while doing my regular things, which made for a comfortable pace
  of learning new material and didn't interfere with other things.
  Example: If you know a cook whose recipe you adore (and they're
  willing), ask them to show you how to make it.* Now, people who
  cook for a long time don't usually measure everything - they
  just have a 'feel' for the right amounts. Let's say it's a
  baker, and she grabs a handful of flour and is about to toss it
  into a bowl.* Before it goes into the bowl, STOP HER and measure
  the flour and write it down.* let her continue.* she pours
  something else in the palm of her hand.* Before she tosses it
  in, STOP HER, measure it, then let her continue.* Keep that
  going and you'll end up with a recipe - FROM AN EXPERT - that
  becomes REPEATABLE.* HER INTUITION is ENCODED in the amounts she
  uses for her recipe - and while you may not gain her INTUITION
  of the proper amounts to you, you WILL be able to make the same
  recipe. This was Ken Without The Clever Nickname - hoping it
  helps you out.