Reviews on top waterproof mp3s

On a random day last year, when I was on a threshold - about to push myself off the wall to do a long swimming set, my eyes were fixed on this lady my eyes were fixed on the lady's swim cap on the lane next to me. It was a hot pink, chic mp3. I completely fell in love with it and before I had the chance to decide whether it's a bit awkward to talk to a stranger, I found myself complimenting her mp3. The lady must have noticed my stoked face, she kindly told me the things I wanted to know.

And so the search for waterproof mp3 began.


*All prices are up to date

Sony Walkman - NWZ-W262BLK (USD$ 60)

Pros: simple-looking, light, quick charge
Cons: However, even though it's labelled 'water-resistant', it is NOT for swimming. The device works fine with sweat or rain but not when it's flooded (high pressure). Some reviews mention that it also slides easily with constant movement. 

Speedo Aquabeat 2.0 (USD$ 119.99)    

Pros: It has a screen, light, water-resistant, long battery life (20h)  
Cons: Takes time to adjust and set things up, if you have water in ears, the sound quality is messed up (but you could minimalize this by tucking the earphones under the cap).


(The lady had the pink version of this.)

SWIMP3® X18 (USD$ 159.99)

Pros: water-resistant, no need of earbuds

Cons: Apparently many buyers experience trouble with it not being recognized by computer (Vista, Windows 7, etc).

Waterproof iPod Shuffle (USD$ 134.95)

Pros: comes with many colors, fast to recharge, water-resistant
Cons: buttons are stiff, short battery life


This product has the highest positive reviews so far.

Tips on memorizing 20 amino acids

This is for those biochem students who are, like myself, struggling to memorize the structures of 20 main amino acids that are essential for human. These are simplified models along with memorizing tips at the end of this blog.

 Alanine - Ala - A

Arginine - Arg - R

Asparagine - Asn - N

Aspartic acid - Asp - D

Cysteine - Cys - C

Glutamic acid - Glu - E

Glutamine - Gln - Q

Glycine - Gly - G

Histidine - His - H

Isoleucine - Ile - I

Leucine - Leu - L

Lysine - Lys - K

Methionine - Met - M

Phenylalanine - Phe - F

Proline - Pro - P

Serine - Ser - S

Threonine - Thr - T

Tryptophan - Trp - W

Tyrosine - Tyr - Y

Valine - Val - V

• Worth noticing that Asn (N) & Gln (Q) ; Asp (D) & Glu (E) are similar in structure.
• Tyr (Y) is  Phe (F) with -OH 
• 9 essential amino acids have this color

You could also use my flashcards to study. I find this very useful for a long term memory.

Nutritional Info:

• Lys (K) & Trp (W) are poorly represented in most plant proteins, therefore vegetarians need to find alternatives in soy beans, peanuts, nuts and seeds.  

• Cys (C) can partially replace Met (M) (both contain S)

• Tyr (Y) can partially replace Phe (F)