Category: science kits

Thursday, 26 May 2016

08:46 – Barbara has been gone for four days, and Colin and I are continuing to make do. We finished re-watching Jericho again last night. I continue to be impressed by the tight writing. It ran for only 30 episodes from 2006 to 2008, but I’m surprised it made it on the air at all.

I’m still running bottle labels and making up reagents in preparation for making up more chemical bags when Barbara returns. We’re down to only six bottle of Barfoed reagent for biology kits, so I made up a gallon of the stuff yesterday. It’s basically a 0.33 molar solution of copper(II) acetate in 1% acetic acid, which at room temperature is very close to being saturated. Today, I’ll make up several other long shelf-life reagents that we’re short of.

We also have several large trash bags full of 2-liter Coke bottles. I’m sure Barbara will be happy to learn that I have plans for a bunch of those bottles. I’m going to cut off the tops and turn them into planting pots that we’ll use out on the deck.

The next time Al and Frances come up, he’s going to bring his roto-tiller along. I’d like to get a small garden area tilled, maybe 20×30 feet. I don’t intend to plant much if anything there this year, but I’d like to get it tilled up so that we can introduce soil amendments this year and allow them to break down and improve the soil in preparation for actual planting next spring.


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Monday, 23 May 2016

09:33 – Barbara has been gone for 24 hours. Colin and I are still alive. She called yesterday afternoon at 1650 to say she’d arrive safely after driving seven hours with a few stops. Her cell signal wasn’t great, but at least she has service out there in the middle of nowhere. Verizon has a pretty good network.

More science kit stuff for me today. I need to make up more solutions for chemistry kits and run a bunch more bottle labels. When Barbara gets back, she’ll have plenty of bottles to label and fill.

Colin and I haven’t been able to find any wild women, so in the evening we’re watching reruns on Netflix streaming. That and playing ball. Or, as Colin plays it, keep-away.


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Thursday, 19 May 2016

09:57 – We just got our first offer on the Winston house. It was low, at about 89% of the listing price, but it’s a start. We countered, of course.

I’m reculturing bacteria. I just made up and sterilized a liter of phosphate-buffered saline, which is the medium for the suspension, and a 50 mL centrifuge tube of broth media that I’ll later inoculate with the culture.

We’re making up chemical bags for the biology kits today.


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Tuesday, 17 May 2016

09:45 – Colin and I got several solutions made up yesterday. Today, Barbara and I will fill bottles.

One of the solutions we made up was 4 liters of Benedict’s Reagent, which requires a bunch of sodium citrate. While making up the solution, I saw that we were down to less than 500 g of the reagent grade sodium citrate. I was about to order more when I realized that it made more sense just to stock citric acid. I can dissolve a weighed amount of citric acid in water and neutralize it with the stoichiometric equivalent mass of sodium bicarbonate (baking soda) to yield a solution of sodium citrate, which is just what I need. Also, citric acid and baking soda are both cheap, at about $2.70/lb and $0.50/lb respectively, whereas, at about $50/kilo, reagent-grade sodium citrate from a chemical supply company is not. The 10 pounds of citric acid I bought and the baking soda are both FCC/USP (food-grade), which is more than pure enough for making up Benedict’s Reagent. And doing it this way ensures we’ll always have plenty of citric acid (and baking soda) on hand to make up baking powder and various other useful things.



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Thursday, 12 May 2016

07:58 – Well, yesterday morning I made rice, intending to make pork fried rice for dinner last night, but it turned out that we were out of soy sauce. I just added a new category: prepping fail

Next time we make a Costco run, I’ll pick up one or two of the half-gallon jugs of soy sauce. We had one of those before. Barbara hated it because it leaked, so she started buying the smaller glass bottles of soy sauce.

More work on science kits today. We got a lot of bottles filled and capped yesterday. More of that today and for the next several days. Then we can start making up chemical bags for kits.


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Wednesday, 11 May 2016

09:54 – More work on science kits today. We have a couple thousand bottles labeled and ready to fill. I need to make up several of the solutions we need.

I think our cow neighbors are getting used to seeing Colin. This morning, there were about three dozen in the field near our back fence line, including half a dozen small calves. A dozen or so of them turned to watch Colin and me as we walked along the fence, but none of them said anything. Until recently, several of them would have let out a warning moo, and occasionally one would bellow at Colin. I’m sure they recognize a wolf when they see one, but I think they’ve seen him often enough with nothing bad happening that they’ve decided he’s not a threat.

I just cooked two cups of rice to put aside to make fried rice for dinner tonight.


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Tuesday, 10 May 2016

10:26 – Work on science kits today. Barbara labeled another several hundred bottles yesterday. And UPS showed up with three more cases of bottles. The boxes are as beat up as usual for UPS. I suspect their last step before loading the trucks is to run over all of the boxes with the truck they’re going into. At any rate, we’ll be filling bottles today.

Reading various opinion pieces, I see that Trump has no chance of winning in November and that Clinton has no chance of winning in November. I hope they’re both true. Someone posed a problem for me: you spot Attila the Hun, Genghis Khan, Adolph Hitler, Joseph Stalin, Donald Trump, and Hillary Clinton in a sinking rowboat surrounded by sharks. You have room for only four more people in your boat. Whom do you save? My answer: None of them. Which I suspect is the same answer most of the electorate would give.


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Wednesday, 4 May

09:31 – Forty-six years ago today. Four dead in Ohio. Allison B. Krause, Jeffrey Glenn Miller, William Knox Schroeder, and Sandra Lee Scheuer. Kids minding their own business. Murdered by the government. Never forget.

Barbara is spending the day in Winston-Salem, running errands and meeting the HVAC company tech at the old house so they can do a system check and replace the central filter. Colin and I are on our own for today. He’s watching the cows. There are a couple dozen along our back fence, including several babies who aren’t much bigger than he is.

More science kit stuff today. I’ll be running more labels for bottles and making up solutions. Barbara labeled about 1,000 bottles yesterday while she watched House of Cards on Netflix streaming.

It now looks pretty certain that it’ll be Trump vs. Clinton in November, two candidates whom almost no one likes, including the rank and file of their own parties. My guess is that Trump will beat Clinton. A lot of voters hate him, but the same is true of Clinton, so it’s a matter of voters from both parties holding their noses and voting for whichever candidate they hate less. How did we get to this point?


12:16 – Colin just took me out to get some exercise. For me, not for him.

As we went out the door, I threw the Frisbee as far as I could toward the treeline on our southern boundary. Colin ran after it and caught it in the air a few yards short of the tree line. He then lay down and waited for me to walk over to him. When I got about five feet from him, he grabbed the Frisbee and ran over to the north side of the property, 150 yards or so away. He lay down, dropped the Frisbee, and waited for me to make my way over to him. When I was about five feet from him, he picked it up and ran back over to the south side of the yard. Rinse and repeat. This dog has the shittiest play skills, not just of any dog I’ve ever had or known, but of any dog I’ve ever heard of. What other dog, ever, doesn’t know that when his human throws a toy he’s supposed to go get it, bring it back, and drop it to be thrown again? Colin absolutely demands full participation. He does the same thing in the house. I’ll throw the ball. He runs and picks it up momentarily, drops it where it was, and runs back to demand that I go get it and bring it back for him.

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Tuesday, 3 May 2016

10:24 – I walked up to Bonnie’s house yesterday while Barbara was out at a Friends of the Library meeting. Bonnie bought her scooter used, and didn’t get the manual for it. It’s a Pride Mobility Victory model, and I figured it’d be easy enough to grab the manual PDF from their website and print it for Bonnie. Turns out, they make/made a whole bunch of different models all named Victory, and there was nothing obvious on the outside of her scooter to indicate which specific Victory model it was. So I looked at the images of the control panel in all of the PDFs until I found one that looked like hers.

When I dropped off the manual, Bonnie gave me some chicken plants for Barbara. She planted those yesterday, so I’m expecting a good crop of eggs once they start growing. When I mentioned that to Barbara, she just rolled her eyes. When I mentioned that if we wanted eggs we might need to plant some eggplants, she almost threw her book at me.

More science kit stuff today. We’ll spend the day labeling bottles.


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Monday, 2 May 2016

09:43 – Barbara is at the gym. When she returns, we’ll be doing more science kit stuff. Barbara labeled 200 sterile 15 mL centrifuge tubes yesterday for the BC03 bacteria culture we sell as an option to biology kits. I need to reculture that this week, make a phosphate-buffered saline suspension from that culture, sterilize our filling equipment, and fill those 200 tubes.

I’ve also been looking at water issues this week. Our hot water is at 48C, which is a bit cool. The standard is now 50C rather than the former 60C, which was hot enough to produce third-degree burns on adults with about 5 seconds’ exposure. One issue with the lower temperature is that the bacteria that produce Legionnaires’ disease thrive at 50C, so the federal government recommends 50C for everyone other than households with an immuno-compromised resident, for which they still recommend 60C. Oh, yeah. Our well pressure tank is a 32-gallon unit, which is smaller than I’d prefer but larger than I expected. Which reminds me that I need to call and bump the electrician, who was supposed to be installing a cutover switch for our generator.


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