Category: science kits

Saturday, 7 July 2012

08:34 – Barbara is taking a break this morning from labeling bottles to work out in the yard before it gets too hot. I’m doing laundry and other normal Saturday tasks. This afternoon, Barbara will be back to labeling bottles and I’ll be making up solutions and filling bottles. Finished kit inventory is currently at comfortable levels and building.

I spent some time yesterday reviewing and editing the cover for Illustrated Guide to Forensic Science Experiments. All that remains is a quick QC2 pass and then the book will be off to the printers. It’s currently scheduled to hit the bookstores on 12 August. By then, we need to have the first batch of forensic science kits ready to ship.

Barbara and I have been watching Lying Little Pretties on Netflix streaming. My favorite of the four is Spencer, played by Troian Bellisario. I can’t help liking a girl who, while playing Scrabble with her boyfriend, fills in “glyceraldehyde”. I do wonder where she got all those tiles, though.


09:32 – I should remember this stuff, particularly when I’ve left myself notes. I have sheets of paper taped to the cabinet doors in my lab. They’re instructions for making up chemicals for the various science kits. So, this morning I was making up two liters of 0.1% methyl orange indicator. The instructions are as follows: “Methyl Orange, 0.1% – Dissolve 2.00 g of methyl orange powder in about 1.8 L of hot DI water. Cool and make up to 2.00 L.”

So what did I do? I boiled 1 L of DI water, added it to 1 L of room-temperature DI water, and added 2.00 g of methyl orange powder. The water was about 140 °F (60 °C), which most people would consider “hot”. Not hot enough, obviously. Maybe half of the powder dissolved, with the remainder forming clumps that settled to the bottom of the bottle.

So now I’ll decant off about half of the solution, leaving the undissolved powder and maybe a liter of the dilute solution. I’ll boil that and hope the clumps dissolve. If not, I’ll discard what I have and start over, this time with boiling water. And I’ll update the instructions from “hot” to “boiling“.

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Friday, 6 July 2012

10:18 – I got the first kit shipped to Canada yesterday. Per the advice of the woman I spoke to on the USPS toll-free support number, we hauled the kit out to the local post office to have them weigh it and look over the paperwork. I told the guy at the counter not to print postage because I was going to take the kit home and use Click-and-Ship. He said that the paperwork looked fine, but mentioned that Click-and-Ship did all that for me for international shipments.

So I took the kit home, hit the USPS Click-and-Ship web site, and told it I needed to ship a Large Flat Rate Priority Mail box to Canada. Sure enough, rather than the four or so screens that I see for US shipments, there were eight or ten screens, most concerned with customs issues. The only strange part was that when I filled out the manual six-part paper form, per the instructions I’d gotten on the phone earlier, I entered “30.37a” in the EEL field. On the web form for that field, there was a drop-down list, and the only choice was “NOEEI 30.36”. So I did the best I could, and eventually got to the part where I pay and generate the postage label.

I paid (with Barbara’s AmEx because I still don’t have my replacement card) and told it to generate the label. For US shipments, the postage label is a half-sheet. I can choose to print a full sheet with half being the postage label and the other half the receipt, or simply print postage labels two-up if I have multiple kits to mail. I always download the label as a PDF and then print it. In this case, the PDF was three full pages. Two pages of two-up labels and a third page of instructions, which weren’t all that helpful.

I had four half-sheet labels, all of which looked very similar but with minor differences. They all had the same barcode, but one had a second barcode and a “postage paid” line on it. I assumed that was the one I was supposed to stick on the box and the other three were to go into the clear plastic envelope. Just to make sure, I called USPS International Mail support and spoke to a woman who clearly had no idea what to tell me, nor later did the mailman when he picked up the box.

The manual form 2976-A had six parts, with the original being “1 – Manifesting/Scan Copy”, the second and third pages being “Customs Declaration”, the fourth “Dispatch Note”, the fifth “Post Office Copy”, and the sixth “Sender Copy”. The web-fill version had only four parts, “1 – Customs Declaration” (with the postage barcode), the second “Customs Declaration”, the third “Dispatch Note” and the fourth “Sender Copy”. The “Manifesting/Scan Copy” was missing, as was “Post Office Copy”. I assumed that those were taken care of by the Click-and-Ship automation, so I stuck “1 – Customs Declaration” on the box, since it had the postage bar code, and put the other three copies in the 2976-E clear plastic envelope.


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Thursday, 5 July 2012

11:03 – We’re shipping our first chemistry kit to Canada today. I’ll haul it out to the local post office and ask them to take a look at it and the paperwork, and to weigh it just to make sure what it actually weighs. Then I’ll haul it back here, print the Click-and-Ship postage label and hand it to the letter carrier this afternoon.

I also need to stop by the lawn and garden store and pick two or three bags of vermiculite. One bag is four cubic feet (100+ liters). To meet shipping regulations, we pack chemicals in gallon (3.79 L) ziplock bags with a liter scoop of vermiculite added to serve as cushioning and absorbent, so one bag suffices for about 100 kits.

I spent most of yesterday making up solutions for chemistry kits. Barbara spent the day labeling, finishing 1,590 containers, which gave us 30 forensics kits’ worth. That’s one set of 30 labels for a 125 mL bottle, 20 sets for 15 mL bottles, 15 sets for 30 mL bottles, six sets for 30 mL widemouth bottles, and 11 sets for envelopes. She’d previously labeled a dozen sets of envelopes, so that means the forensics kits total 65 containers each.

And I just got off the phone with Crucial. Apparently, someone attempted to use my credit card number to place a $585 order on Tuesday. The Crucial rep said their internal security flagged the transaction immediately. They hadn’t actually run the charge through, but had only placed a query with AmEx to verify the card was valid and place a $585 reduction in our available credit. The rep said that they didn’t actually charge a card until the order shipped, which it obviously never will, so AmEx would automatically remove that $585 placeholder.

I wish our legal system would begin dealing with thieves as they used to be dealt with; at least as severely as murderers. Britain used to hang thieves, which unquestionably had a deterrent effect on the particular thief being hanged as well as on other would-be thieves. I’ve always thought Winston-Salem would be a much better place if, one weekend, we had a mass execution and hanged, say, the worst 1,000 people in Winston. Thieves, rapists, child molesters, politicians who lie or steal, scammers (particularly those who focus on the elderly), spammers, and so on.


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Wednesday, 4 July 2012

Happy Birthday USA!

As you celebrate Independence Day today, please take a moment to think about the men and women of our armed forces, past and present, who have willingly risked, and all too often lost, everything to defend our freedom. I worry about America, but there can be nothing very wrong with a country that continues to produce men and women like them.


08:43 – Today also marks eight years for us being Microsoft-free. We’ve been using free software exclusively since 4 July 2004.

Today, Barbara will get started on labeling close to 4,000 containers, enough for 60 more chemistry kits and 30 forensics kits. Meanwhile, I’ll be downstairs, packing up the 30 chemistry kits that are in-progress and making up solutions for 60 more, as well as the first group of solutions for the forensics kits.


15:39 – AmEx security just called me to report that there were questionable charges made on my card. They’re issuing me yet another new card. This happened Christmas Day of 2011, and it’s getting to be really annoying. The questionable charges both occurred yesterday: a $1 charge by Groupon and a $585 charge by Crucial/Micron.

The Groupon charge is completely fraudulent. I have never charged anything with Groupon or given them my card number. The Crucial/Micron charge is fraudulent in the sense that I didn’t make it, but because I have done business with Crucial using that card, AmEx couldn’t void the charge. I’d ordered a $30 memory kit from Crucial/Micron a couple of weeks ago. So tomorrow I have to call Crucial/Micron and give them hell. They weren’t supposed to retain my card number. If they didn’t, how could they have placed that $585 charge yesterday? And why did they place a $585 charge when I hadn’t ordered anything?

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Tuesday, 3 July 2012

09:35 – We’re officially out of chemistry kits, in the sense that the last assembled kit in inventory is spoken for, although not yet actually shipped. Fortunately, we have 30 more chemistry kits sitting partially-assembled, so I can put together kits on-the-fly as needed. We’ve also started on new batches of 60 chemistry kits and 30 forensics kits, which we’ll work on over the holiday. Meanwhile, UPS is supposed to deliver several thousand bottles and caps today. And Barbara’s new system is still sitting partially-assembled on the kitchen table.


16:48 – UPS showed up a couple hours ago with eight cartons of bottles and lids–several thousand of them. That’s fortunate, because I just finished printing about 4,000 labels.

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Monday, 2 July 2012

14:37 – I’ve spent most of the morning on the phone, on-hold, being transferred among, and talking with representatives from various US government organizations, ranging from the US Postal Service to the Department of Commerce to the Department of Defense to (I am not making this up) the Census Bureau.

I was trying to find out how to fill out a form properly, more particularly PS Form 2976-A Customs Declaration and Dispatch Note. The Census Bureau was actually the starting point, where the instructions on the form directed me for information about filling out Box 11, which is descriptively named “EEL/PFC”. I might have figured it out myself if they’d used the expanded form: “Exemption or Exclusion Legend/Proof of Filing Citation”.

I learned that I really, really wanted an EEL rather than a PFC, because the latter is a lot more work. The EEL is basically the quick-and-dirty no-paperwork option. To use it, you must meet two requirements. The first was easy enough. The value of the individual shipment has to be $2,500 or less. Our kits sell for about a tenth that or less, so that wasn’t a problem. But (there’s always a “but” with government crap) the second requirement was that the shipment contain nothing restricted. Restricted in the sense of having potential military or terrorist uses. Stuff like ultra-centrifuges for separating fissionable isotopes. After spending three hours on the phone, with everyone saying “I don’t think high school science kits will be a problem, but you need to make sure…” I finally got to someone who knew how to resolve the issue. I visited a web page where I could “self-qualify” as exempt. So now all I need to do is write “30.37a” on line 11 (and possibly “EAR99” although I couldn’t get a definitive answer for that) and on line 17 “NLR” or “No License Required”. I think.

So then I called USPS support to verify that I knew exactly how to fill out the form. The woman I spoke with said everything sounded fine. In fact, she thought I could just leave lines 11 and 17 blank, but said it wouldn’t hurt to write what I’d been told to write in them. She also suggested that for the first shipment I should visit the local post office just to verify that everything was correct. So, Thursday (Wednesday is a USPS holiday and I didn’t want to ship the day before a holiday) I’m going to drive to post office and ship my first kit to Canada. We’ll see what happens.


We got four chemistry kit orders yesterday, which took us down to only three remaining in stock. I’m not too concerned, because we have everything necessary to assemble another dozen quickly, followed by 18 more once the shipment of beakers arrives. But we did decide to boost the size of the next batch of chemistry kits from 30 to 60, because these things are starting to sell pretty quickly.

I also posted a forensics landing page and forensics kit page. As of now, we’re accepting pre-orders for the forensics kits, although we won’t be shipping them until next month.

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Sunday, 1 July 2012

08:33 – And, speaking of OMGWO inventory, with two more orders arriving overnight, we’re just about out of chemistry kits. Fortunately, we’re ready to start building another batch of 30, other than the shortage of 250 mL glass beakers. And I just realized that I have a supply of unused 250 mL glass beakers in my lab that I can use until the new shipment of 144 arrives.

As of today, we’ve begun accepting orders for science kits shipped to Canadian addresses. The kits cost $40 more than kits shipped to US addresses, which covers the additional shipping cost. We’ll ship via USPS Priority Mail International, which delivers the boxes to Canada Post, which delivers the boxes to the customers. From what I’m told, Canada Post may or may not hold the boxes for delivery in order to collect sales tax. Apparently, that’s totally random, and depends on whether Glenda the Good Witch or the Wicked Witch of the West happens to be on duty that day.

Although we’re accepting orders as of now, we won’t actually begin shipping kits until I finish going through all the hoops to get an export license number. We should be able to start shipping kits by mid-July or so, at which point we’ll give priority to shipping backorders from Canadian customers.


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Saturday, 30 June 2012

08:13 – My sketchy inventory system has let me down. We were planning to assemble 30 chemistry kits this weekend, but as it turns out we’ll assemble only six. The problem is that I thought I had 36 of the 250 mL glass beakers in stock, but I actually had only six. The other 30 went into the last batch of 30 chemistry kits but somehow never got deducted from inventory. So it seems we’re destined to continue using the OMGWO (Oh-My-God-We’re-Out) inventory system.

Not that that’s a major problem. In fact, it’s kind of an informal JIT (Just-In-Time) inventory system. I ordered another 12 cases of beakers (144 total) yesterday, and they should arrive this coming week. We’ll still assemble the 30 chemistry kits this weekend. It’s just that only six of them will move to the finished goods area to await shipping, with two dozen remaining in the final assembly area awaiting beakers. We’ll finish assembling those this coming week, and start on a new batch of 30 chemistry kits.


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Friday, 29 June 2012

08:24 – The news stories from the EU Summit-of-the-Month report that Merkel has backed down. Nothing could be further from the truth. With regard to the only thing that matters–Germany paying everyone else’s bills–Merkel hasn’t yielded a centimeter. The EUrocrats have simply spun a couple of minor decisions to appear major. All they’re about is allowing the leaders of Spain, Italy, and France to save face. Nothing has changed. There’s been a minor decrease in Spanish and Italian bond yields, but that’s unlikely to last long. The euro comes out of this conference no better off than it was going in, and probably worse. As always with the EU, it’s Videri Quam Esse.


I just issued a big purchase order for kit components to one of our three major wholesalers. I’ll get the other two issued today. Which means this weekend we need to get the piles of boxes that are currently stacked in the library downstairs to make room for the new piles of boxes that’ll be showing up soon.


17:29 – Even the columnists for The Telegraph, who are usually quick to see through the EUrocrats’ smoke and mirrors, are missing the point entirely this time. The so-called agreement they reached does not guarantee Spain and Italy anything. Everyone is talking as though Spain and Italy can now draw on EFSF/ESM funds to recapitalize their banks without those loans showing up on sovereign balance sheets and without implementing austerity measures. That’s wrong. Germany retains the absolute right to veto any such disbursements, and will do so unless Spain and Italy comply with previously-agreed conditions. Neither country can meet those conditions, which are economically and politically infeasible. In other words, Spain and Italy both walked away from the conference claiming that they’d gotten what they demanded. They did no such thing.

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Thursday, 28 June 2012

10:40 – We’re still working on building science kits, which is going to be my life for at least the next three months or so. We’re down to about five chemistry kits from the last batch of 30, but we’ll finish a new batch of 30 this weekend. Then we’ll immediately start on yet another new batch of 30.

I had been making up chemicals in one- and two-liter bottles. One liter is sufficient for 60 kits for chemicals that we supply in 15 mL bottles, and two liters sufficient for 60 kits for chemicals that we supply 30 mL. I made up the chemicals in small batches to ensure freshness. But now that we’re shipping more kits, I’m going to make up two liters rather than one and four liters rather than two. That’s sufficient for 120 kits with some to spare. It takes little more time to make up twice as much, and time is becoming an issue.

Actually, rather than make up two two-liter bottles, I’ll probably make up 3.8 liters in old gallon orange juice containers. Those have recycling codes of 2 (HDPE) and 7 (Other), so I’ll need to test them with some of the more corrosive chemicals we make up, such as 6 M hydrochloric acid and 6 M sodium hydroxide. I know, I know. In general it’s a horrible practice to make up hazardous chemicals in old food containers, but there’s no one with access to our work areas who’s likely to mistake a gallon of hydrochloric acid for a gallon of orange juice.

We’ll also be building Barbara’s new system this weekend. The Intel D2700MUD motherboard/processor showed up Monday and the Crucial 4 GB memory kit yesterday. We’ll use her existing hard drive and put everything in an Antec Sonata Designer case. This will be a very simple, low-power, quiet system. I don’t think we’ll bother to install an optical drive, since Barbara doesn’t use the one she has in her current system. We’ll just hook up a DVD writer long enough to install Linux and restore her data from disc.

I was going to order a new hard drive for Barbara’s new system. The one in her current system is an old 750 GB Seagate Barracuda. But it passes an intense disk test, so we’ll keep it for now. Speaking of Seagate, I think we’re finished with them for a while. We’ve had numerous premature failures of Seagate hard drives, including just yesterday a hard failure of a 2 TB Barracuda that had less than 100 hours of use. Hard as in rattled loudly when powered up. These things seem to go in phases. Years ago, we used both Seagate and Western Digital drives and had about the same experience with both. Then WD had a horrible run for at least a couple of years, when I wouldn’t touch one of their drives on a bet. For the last several years, WD drives have been much more reliable and Seagate drives appear to be in a bad spell. I have an unused 3 TB Barracuda that I intended to use as the primary drive in my new system (Barbara’s old system), and I’ll probably still do that. But I’ll keep a close eye on it. If I need to replace it, I’ll probably go with a Western Digital Caviar Green.


14:47 – I just ordered another 5,000 15 mL and 30 mL bottles and caps. It occurred to me that many of our wholesalers routinely post price increases as of the first of January and July, so I figured I’d better take some time now to get some purchase orders issued. I was actually going to order about twice as many bottles and caps, but the things take up a lot of space, which is in short supply right now. With the bottles already in stock, this order gives us enough bottles to make up about 60 more each of the biology, chemistry, and forensics kits. Now I need to get orders placed today and tomorrow with some of my other wholesalers for other kit components.

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