what a day...

Came in this morning with lots of plans for the day. It was suppose to be a really productive Monday. It's the end of Monday and what have I done? Prepare 1 medium to grow my picky bacteria. I had to add 18 amino acids into the medium and I thought that I could just mix them up together. I started out by mixing histidine and tyrosine. Initially they look fine but after leaving it on the bench top for a while, they started to look milky. I filter-sterilized it and it looked fine again. But as before, it got milky after leaving it at room temperature for a short while. So I looked up the class of the 2 amino acids and guess what..one is polar and the other is ionic. Maybe some interaction is going on, causing them to 'fall-out' of the solution.

So I spent the next couple of hours rearranging the combinations, recalculating all the concentrations and amount I need. It was almost 6pm when I got done but had to go to the post-office to get some stamps and mail a letter before they close. Since the post-office is on my way home, I decided to just go home and get dinner before continue making my medium.

While I was home, I cleaned up the jacket and shoes closet and saw my new running shoes. It's the most expensive one I've ever bought - USD 35. Even that is half-price. I bought a sandal at that time and they were having a sale where we get to buy the 2nd one for half price. So I got this Nike shoe. I've only worn it once, which was during the Race for the Cure walk. I wanted to break it in before bringing it to Woods Hole with me. Just not too long ago, I refuse to buy Nike shoes because I always think that they are over-priced compared to New Balance or North Star, which are the shoes that are usually on sale at Bata. They are usually less than RM40 so I always think that it's impossible to get a shoe for USD10 here, I wait until I go home to get those shoes. But the last time I went home, I got a North Star for almost RM50. After conversion, double up the price and I can get a nice, comfortable shoe..why not? So I finally got a really expensive shoe. I can definitely think of someone telling me "see, told you earlier but you're so stubborn, don't want to get it". *grins*

There goes a pretty busy day but unproductive...