Month: March 2013

Monday, 11 March 2013

08:39 – Barbara’s dad came home from the hospital yesterday and seems to be doing well. Her mom also seems to be doing pretty well. Barring the always-present possibility of an emergency, everything seems to be back on a relatively even keel.

Barbara started labeling bottles yesterday for the next batch of 60 chemistry kits. Those will go on the shelf to be filled later. When she finishes labeling this batch, she’ll start labeling bottles for another batch of 30 forensics kits, then 60 more biology kits, then back again for 60 more chemistry kits. With what we already have in stock, that gives us enough for 180 chemistry kits, 120 biology kits, and 60 forensics kits. Then we’ll start the cycle again. Geez, we’re gonna use a boatload of bottles.

Last night, we watched the series finale of Rescue Me, so tonight we’ll start one of the series that’s been patiently waiting in our Netflix streaming queue.


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Sunday, 10 March 2013

11:06 – Barbara got home a few minutes ago from her sister’s birthday breakfast. A bit unusual, but Frances’ husband has to go in to work later this morning, so it was breakfast or nothing.

Reorganizing downstairs is proceeding apace. Last August, we went out to Home Depot looking for plastic storage bins. They had generic shoebox-sized 6.5-quart storage bins with lids for $1.17 each, so we bought 37, which was their entire stock. I was intending to buy another bunch, so I checked the website to see how many the local store had in stock. While I was there, I started looking at alternatives. They also had Sterilite plastic shoeboxes. That’s a decent brand name, but the Sterilite boxes were a lot more expensive. Then I noticed that they sold them in a 60-pack, on-line only, for $70. That item was flagged “no free shipping”, which concerned me a bit. But I added it to my cart anyway, and ended up paying only the $70 plus $5 shipping and $5 sales tax. That’s $1.33 each delivered, and they’re nicer storage bins than the no-name ones we bought before. And I don’t have to carry them home. I did check Amazon, of course. They didn’t have the 60-packs. They did have 12-packs with free shipping, but five 12-packs would have cost me $132.

When they arrive, 30 of them go downstairs on the work tables. We’ll use them to assemble batches of 30 each of the various chemical bags that go into the kits. They’ll replace the cardboard boxes we had been using. The other 30 stay upstairs, where we’ll use them to assemble batches of 30 of the small parts bags for the kits. The nice thing about these bins is that they’re stackable when not in use, which cardboard boxes are not. That means we can get them out, set up an array of 30 of them, build 30 (or 60 or 90) small parts bags, and then stack the bins out of the way.


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Saturday, 9 March 2013

10:35 – Barbara’s dad is in the hospital again, but she’s expecting him to be released today or tomorrow. Dutch had a follow-up doctor visit yesterday, and the doctor was concerned about the amount of water-weight Dutch had gained. So they did a direct-admit to the hospital so they can put Dutch on IV diuretics to get some of the fluid gone. As Barbara said last night, this’ll probably be a regular thing every couple of months for the rest of Dutch’s life. He’s doing what he’s supposed to in terms of limiting fluid intake, salt, and so on, but eventually the fluid builds up anyway. Barbara said the good news was that the blood tests showed Dutch was otherwise doing well, including kidney function.

Barbara already had plans for last night with her friend Bonnie to attend a concert. She decided that Dutch’s condition wasn’t an emergency, so she went ahead with her plans. Frances and Sankie went to the hospital with Dutch. Sankie, who is apparently doing very well mentally, stayed with Frances last night, so presumably they’ll go over to the hospital today. We’re hoping Dutch will be dried out and ready to go home this afternoon.

One of the downsides to our increasing kit sales volume is that we’re ordering in a lot of components, which have to be stored somewhere. Storing one case of 1,100 or 1,500 bottles or 60 test tube racks, for example, is no big deal. Storing a dozen or two dozen cases of bottles and 600 test tube racks is a different thing entirely. So one of my high-priority projects for this weekend–especially since I have cases and cases of more stuff on order–is to get the downstairs finished and unfinished areas better organized. I need space to store all this stuff, and I need to be able to find it quickly.

First up is to get the half dozen or so cases of bottles that are currently lining one wall of the garage area in the basement moved over into the finished area and sorted out by type. There are more cases in the library upstairs that we’ll also move down to the finished area of the basement, along with some of the stuff that’s currently in my upstairs workroom.

Then I want to convert my work/storage area in the unfinished part of the basement into a pure storage area. That means moving out the two 6X2.5 foot work tables in that area and installing floor-to-ceiling 12-inch shelves where the tables were. Those tables will go out into the garage area, where the cases of bottles were.


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Friday, 8 March 2013

06:47 – While I was concentrating on other things, the finished-goods inventory of biology kits got away from me. We sold two of those yesterday, which took us down to only three biology kits in stock. We have all the subassemblies to build two more, but that’s still only five total. Fortunately, with minor exceptions, we have all the components we need to build another 60 biology kits, but it will take some time to get those assembled.

One of those exceptions is the 100 mL polypropylene beakers, of which we have only 34 in stock. I have 600 more on order, but they won’t arrive until the end of this month. Biology kits include one of those beakers and chemistry kits two. So I think I’ll build a dozen biology kits, which leaves me enough for 11 more chemistry kits to go with the dozen that are already in finished inventory. We’ll keep our fingers crossed that 17 biology kits and 23 chemistry kits will hold us through the end of the month. Meanwhile, I’ll be getting everything assembled for 60 more biology kits and 48 more chemistry kits, less those beakers.


11:29 – So, I’m down in the lab making up a liter of phosphate-buffered saline 10X concentrate. I opened a new gallon of distilled water, poured some into the container I was using to make up the PBS, and noticed a puddle on the counter top. I’m not usually that sloppy, so I soaked it up with a towel and replaced the gallon jug of DI water on the counter. A moment later, I looked down. There was another puddle. Apparently, just removing the cap from the jug was enough to start it leaking. I’ve never had that happen before.

One can buy PBS tablets that simply need to be dissolved in the specified amount of DI water to make up PBS, but I didn’t have any. So I made up the PBS from reagent-grade sodium chloride, sodium hydroxide, potassium hydroxide, and phosphoric acid. I was using a clean 1-liter softdrink bottle as a disposable mixing container, planning to transfer the solution later to a 1-liter polypropylene bottle and autoclave it to sterilize it. Then I realized that autoclaving was gratuitous. Of course, I’ll autoclave the working dilution before using it, but I wanted the 10X concentrate sterile as well just to make sure nothing grew in it. But of course I didn’t need to autoclave to sterilize the 10X batch. I’d already dissolved the sodium hydroxide and potassium hydroxide in 250 mL of so of DI water, making a solution that was extremely alkaline, probably 0.5 molar with respect to hydroxide. More than enough to kill microorganisms and spores on contact. So I transferred that solution to the 1-liter bottle, swished it around to contact all parts of the bottle and cap, and declared the storage bottle sterile. I then added the phosphoric acid, creating the buffer, and topped up with DI water. That should be sufficient. It’s a water-clear solution in clear plastic bottle. If the next time I pull it out it looks at all cloudy, I’ll just autoclave the hell out of it. But I don’t think that’ll be necessary.

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Thursday, 7 March 2013

08:02 – I got one of the colors wrong yesterday. I said universal indicator is “rose” at pH 3, but I should have said “salmon” or perhaps “terra cotta”. It’s a problem of guy-colors versus girl-colors. Like most guys, I have no clue what girl-colors like chartreuse or fuchsia are. I’ve even gotten in trouble with girls for pronouncing the latter in the German way. Which reminds me of a classic demonstration of the difference in how girls and guys consider colors:


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Wednesday, 6 March 2013

09:17 – Barbara picked up her mom from the hospital yesterday and brought her home. Sankie was apparently talking nonsense for most of the trip home and for a while after they got back to the apartment, but Barbara said her mom started to settle down after Barbara gave her the no-more-of-this-or-else speech. Our phone didn’t ring after Barbara got home, so we’re hoping that Sankie will settle down and start behaving. Sankie must know that if she starts up again, Barbara and Frances will have no option but to move her to a different facility.

One of the “new” chemicals we plan to include in the life science kits is universal indicator, which provides a visual indication of the approximate pH of solutions. In very acid solutions, pH 2 or lower, the indicator is red. As the pH increases, the color changes through rose (pH 3), orange (4), orange-yellow (5), yellow (6), lime green (7), green-blue (8), cyan (9), lilac (10), violet (11), and finally to pure blue in extremely alkaline solutions. So I just made up and tested two liters of the stuff, which is enough for 60+ life science kits.


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Tuesday, 5 March 2013

07:40 – Barbara is leaving work at 1:00 p.m. today to drive to Thomasville to bring her mom home from the hospital. Everyone is keeping their fingers crossed, because this really is Sankie’s last chance. If she starts acting paranoid and delusional again, Barbara and Frances will have no choice but to move Sankie permanently to a facility that’s equipped to deal with such problems.

Barbara is adamant that it’s sink or swim time. She won’t stay over at her parents’ place tonight. Her mom has to settle in and behave normally. There’s no other option, unless her mother wants to be separated from Dutch and live in a different facility.


08:44 – It’s interesting how my attitude about inventory levels has changed. I just checked status on the items that I need to build more chemistry and biology kits. Among the items included in both kits are polypropylene beakers. The biology kits include one each of the 50, 100, and 250 mL PP beakers. The chemistry kits include two each of the 50 and 100 mL PP beakers. I currently have 79 of the 50’s, 59 of the 100’s, and 73 of the 250’s in stock. Not all that long ago, those would have been reasonably comfortable numbers. I’d have been thinking about reordering, but not urgently. Now, it’s panic reorder time. Less than 30 chemistry kits’ worth in stock. So I just did a purchase order for 600 each of the 50 and 100 mL beakers and 180 of the 250’s. Not to mention 400 Petri dishes.


10:40 – How could I have forgotten to mention this? In the past, the Academy of Canadian Cinema & Television has had two separate award tracks, the Canadian equivalent of the Oscars for cinema and the Emmys for television. This year, for the first time, they consolidated the two and created the new Canada’s Screen Star award. And the first-ever winner of the Canada’s Screen Star award is, you guessed it, Amber Marshall, the star of Heartland.

By the time I’d watched the first five minutes of the first episode, I knew that Amber was something very special. She is a stunningly good actress, effortlessly assuming the complex personality of her character, Amy Fleming, a mixture of vulnerability, determination, courage, insecurity, and above all a love for animals. Or perhaps she’s not acting. She’s said that her role on Heartland is her dream job, combining her love of acting and her love of animals. Amber may just be playing herself. In either case, she’s well worth watching.


11:40 – Geez. Barbara called about 11:00 from her cell phone to say she’d left work earlier than expected because her dad was bleeding badly from his leg. She called back a few minutes ago to say she was over there and it was no big deal. Her dad had been attempting to change the bandage on his leg wound, and called her to say it was bleeding badly. As it turns out, he scratched his leg in a different place and it started bleeding. All it needed was a band-aid. As Barbara said, her parents may survive all this, but she doesn’t think she will. She’s going to have lunch with her dad, head over to pick up her mom from the hospital, bring them home and get them settled, and then come home. She can’t take much more of this. She’s already taken more than anyone should have to. I’m going to suggest to Barbara that from this point forward if her parents have any kind of medical emergency, they call 911, period. The hospital can contact Barbara and Frances, if necessary. Barbara and Frances simply can’t continue to be on-call 24 hours and go rushing over there every time something happens. It’d be one thing if Dutch and Sankie could be trusted to call them only for real emergencies, but obviously neither of them can be trusted to know what is and isn’t worth calling Barbara and Frances out for.


13:57 – I’m apparently sucking some of my wholesalers dry on some items. I tried to order 600 each of the 50 mL and 100 mL PP beakers this morning and found that they were backordered. The good news is that they have another shipment coming in on 29 March. The bad news is that that shipment is only for 3,600 each, so I’m claiming a sixth of what they’ll have available until late April. Same deal on the Petri dishes. I intended to order 400 of them, but the vendor had only 360 in stock and no outstanding order with their supplier for more. So for at least a couple of months, they’re going to be out of stock on those Petri dishes. Same deal on the prepared slides I ordered for the SK01 slide sets. I took all they had, leaving them with just a few leftover miscellaneous ones. And UPS showed up a few minutes ago with an order from one of our chemical suppliers. I got most of what I ordered from them, with the exception of 3.5 liters of glacial acetic acid and half a kilo of lead acetate.

We’ve had minor issues with backordered items in the past, but with only one or two exceptions we were able either to second-source the item or substitute for it. But as our volume ramps up, I can foresee that managing backorders is going to become more of an issue, particularly for items that I can’t second-source or substitute for. One good example is the stainless-steel micro-spatulas that are in all of our kits. Last month I ordered 400 of those and found that there were only 100 available. We can’t second-source them because no one else I can find carries that exact spatula, and we can’t substitute for them because the instructions for the science kits sometimes say to use x number of rounded spatula spoons or whatever. So, when the vendor told me that 300 spatulas were back-ordered until mid-April, I told them to boost that back-order from 300 to 700 units. That ties up some working capital, but that’s a better option than running dry in our busy season.

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Monday, 4 March 2013

09:21 – Barbara spent the night over at her dad’s place. She’s home tonight and then pulling a double over at her dad’s place Tuesday and Wednesday nights. Frances is doing Thursday and Friday nights.

Frances called yesterday because she was concerned about a redness around their dad’s injury. She decided to haul Dutch over to the private emergency care place to have it looked at. They said it was no big deal, but prescribed an antibiotic and saline irrigation. Frances picked up the antibiotic, but Barbara said she’d stop on her way over after dinner to pick up the 0.9% saline wash they’d suggested. I told Barbara I’d make it up right here in the sink and save her the trouble of stopping at the drugstore. I just dissolved 9 grams of table salt in a liter of tap water, and didn’t bother to autoclave it. After all, more airborne bacteria will settle on Dutch’s skin during the irrigation than are present in a whole liter of tap water.

Science kit sales have picked up over last month. In the first three days of March, we’ve sold five kits, and we’re averaging about 0.80 kits/day year-to-date. That’s pretty scary, given that in the first three months of 2012 we averaged about 0.12 kits/day. This is our slowest time of year. Factoring in seasonality, that puts us on track to sell 1,500 kits in 2013, assuming we can build and ship that many.


13:01 – I see that Latvia has formally applied to join the eurozone, which is kind of like formally applying to board the Titanic. After it’s already hit the iceberg.

I think it’s safe to say that no sane person, including sane politicians (if there is such a thing), would want to be a member of the eurozone. If you’re in one of the dozen or so worse-off countries, the euro is choking the life out of your economy and causing severe social unrest that may end in revolution. If you’re in Germany or (decreasingly) Austria, Finland, Holland, or Luxembourg, being in the euro means you’re on the hook for paying the multi-trillion euro bills of the worse off eurozone countries. What’s not to hate? Crappy taste. More filling. Geez.

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Sunday, 3 March 2013

09:11 – We’re getting near the end of all three series that we’re currently watching on Netflix streaming, so it’s time to start sampling a few of the 150+ other entries in our Netflix instant queue. One of the series that we’re about to finish is Rescue Me, Denis Leary’s program about FDNY firefighters. That series is excellent across the board: great writing and an excellent cast. There’s not a weak member in that cast, but Barbara and I agree that one of them stands out even among that superb group. Callie Thorne, who plays Sheila Keefe, is stunningly good. She can do more with a raised eyebrow than most accomplished actresses can do with a Shakespeare soliloquy. We’re looking forward to watching her in other series.

Speaking of excellent TV series, the Canadian series Heartland reaches a milestone this evening, when its 100th episode is broadcast. Heartland is only the second Canadian one-hour drama series ever to reach 100 episodes. It’s also, along with Rescue Me, one of very, very few series I’ve ever rated five stars on Netflix. Alas, Netflix has only the first two seasons and the first 14 of 18 episodes in series three.

Meanwhile, I’m currently running an experiment in the kitchen. The biology and life science kits include a packet of lima bean seeds. The other day, I was about to order 5 pounds (2.3 kilos) of lima bean seeds from one of my on-line vendors when I was struck by a cunning plan. Those vendors typically charge $25 plus shipping for 5 pounds of lima bean seeds. But I can get 5 pounds of dried baby lima beans at the supermarket for $8 or so. So when Barbara made a quick stop at the supermarket yesterday, she brought home a one-pound bag. I planted five of those seeds in a cup of vermiculite, which is now sitting in the dining room, where it gets lots of morning sun. I’ll keep an eye on them for the next week or ten days. If they germinate, and there’s no reason why they shouldn’t, we’ll just use lima beans from the supermarket in the kits. The cost savings would be pretty minor, maybe $0.10 per kit, but we do everything we can to keep the price of our kits as low as possible.


10:49 – The house just resounded to my Quack of Triumph. (Being a Linux guy, I quack rather than roaring.) A few months ago, I noticed that our washing machine was agitating intermittently. I ordered a replacement agitator subassembly with dogs a couple months ago. I think it cost $14 or something like that. As it turns out, I could just have ordered four dogs for about $3, but I’m just as happy to have the new agitator subassembly installed. As Barbara said, that should last the remaining life of the machine. It took me all of five minutes to do the repair, and four minutes of that was finding the correct socket and a long enough extension for my 3/8″ ratchet.

Which got me to thinking of just how valuable the Internet is, even in invisible ways. I started by searching Google for something like “agitation problem” “whirlpool washing machine” and got a bunch of hits. Among those were several on YouTube, one of which illustrated the entire process of replacing the agitator subassembly on my exact model of washing machine. Then I used Google to find the correct part number and find a good price for it, and order it. The next day, it showed up. Of course, it’s been sitting on the dryer for a couple of months waiting for me to get a round tuit, but the point is that I could have discovered the problem one day and had it fixed the next. That’s probably as fast or faster than making a service call, and certainly a whole lot cheaper. Before the Internet became what it’s become, I could still have made the repair, but it would have taken me at least a couple hours to find out what part I needed, check to see if it was in stock locally, drive over and buy the part, and make the repair. Thanks to the Internet, this kind of efficiency happens millions of times a day in one way or another.

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Saturday, 2 March 2013

10:04 – Barbara stayed with her dad last night, and will be back sometime this morning. Before she headed over there last night, I talked to her about ending the dad-sitting duties she and Frances have been doing every night since he hurt himself a week ago. Staying over there every other night is very wearing on Barbara, physically and emotionally, and must be the same for Frances. I told Barbara that I thought she and Frances needed to pace themselves, because no one knows when the next real crisis will occur.

We’re in pretty good shape on science kit inventory now. We have, either as completed kits or as subassemblies ready to build, about six dozen each of the chemistry and biology kits. We introduced the biology kits last April, and I just checked the sales ratio of biology:chemistry kits over that full period as well as the last six months and the last three months. It’s remarkably consistent, with biology kit unit sales holding at about 55% of chemistry kit unit sales. In other words, we sell about 1.8 chemistry kits for each biology kit. That means that if we want a total of 350 more biology and chemistry kits ready to ship as of 1 July we need 125 biology kits and 225 chemistry kits. That in turn means that over the next four months or so, we need to label and fill something like 15,000 containers, or roughly 125 per day. That’s doable, but we’ll be busy between now and the end of the year.


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