Reddit mentions of The Laws of Thermodynamics: A Very Short Introduction

I found this a very useful introduction; http://www.amazon.co.uk/Laws-Thermodynamics-Short-Introduction-Introductions/dp/0199572194

That whole series of books is quite useful if you're trying to get a taste of a particular topic before studying it in more detail.

The Feynman Lectures are a perfect introduction to physics from high school level all the way up to degree level.

A good understanding of maths is essential to more advanced physics and there is an excellent textbook written by two extremely qualified headmaster's called The Language Of Physics: A Foundation for University Study which is what's recommended to first year University students and poses questions at the end of each chapter.

If you're looking for something a little less intimidating, then the A Very Short Introduction series have a perfect range of short (and cheap!) books on Physics: [Quantum Theory]
(https://www.amazon.co.uk/gp/product/0192802526/ref=pd_sim_14_4?ie=UTF8&psc=1&refRID=9A3MSV2XSQRYF880MYP6), Relativity, Particle Physics, Cosmology, Nuclear Physics, Black Holes, Thermodynamics, Astrophysics, Light and Magnetism. These are great little books that don't blow your head off!

Physics is an extremely interesting subject to read around and I wish you the best with it :)

Here are some cool videos for you(not really informative about the makeup of cells but nonetheless might interest you enough to read the amazing books that I've listed below! The microcosmos really is a whole 'nother world!):

Kinesin Walking Narrated Version:

http://youtu.be/YAva4g3Pk6k


This is a better model. Notice how the 'legs' shake around violently until it snaps into place. Sometimes the random motion of the jiggling atoms(these aren't shown. Imagine the Kinesin molecules shown in a sea of water molecules, all jiggling about ferociously. The 'invisible' water molecules are bumping up against the Kinesin, and it's evolved to work with the random motions) makes it step backwards! But the ATP/ADP process makes it more likely to step forward than backwards(an evolved process). This is explained well in the book Life's Ratchet below.

Molecular Motor Kinesin Walks Like a Drunk Man:

http://youtu.be/JckOUrl3aes

Here are some amazing book to read. Seriously read all of these, preferably in the order listed to get the best understanding. They will blow your mind many times over. Many, if not all, may be at your local library.


QED: The Strange Theory of Light and Matter:

http://www.amazon.com/gp/aw/d/0691125759


Quarks: The Stuff of Matter

http://www.amazon.com/gp/aw/d/0465067816


Thermodynamics:A Very Short Introduction

http://www.amazon.com/gp/aw/d/0199572194


Life's Ratchet:

http://www.amazon.com/gp/aw/d/0465022537/


The Greatest Show on Earth: The Evidence for Evolution

http://www.amazon.com/gp/aw/d/1416594795


The Drunkard's Walk: How Randomness Rules Our Lives

http://www.amazon.com/gp/aw/d/0307275175p

I would also recommend taking a biology and maybe a chemistry class at your local community college, if possible. My biology class started with the smallest stuff, atoms(technically not the smallest, but whatever), and worked its way up through the chain of sizes up to the biosphere. It was very informative and there were a few people in their 40s(a guess) that really enjoyed the class. So you can do it, too!