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Its been well over a month since the total solar eclipse took place in the United States and for a small science store the overwhelming experience for us was the demand (and inability to supply) eclipse shades for viewing the event.  We bought hundreds of eclipse shades, but underestimated the last minute demand for them.

So what happened? Well, mostly it was folks waiting until the last minute (sometimes later than the last minute) to purchase shades, combined with some unscrupulous dealers selling eclipse shades that were not up to acceptable standards.

Early Warnings of Frauds

As early as February of 2017 there were warnings about substandard eclipse glasses being sold on the market. This wasn’t a major issue at the time but some of the glasses were showing up with fake . certification warnings and using the logos of legitimate eclipse shade sellers such as Rainbow Symphony and American Paper Optics. While this was a problem, it was purely a safety problem and was not yet a logistics issue.

Early Orders Sell Out

Nobody  wanted to buy hudnreds of eclipse shades montsh and months before the eclipse actually happened so we (and many others) placed their orders 3 months before the eclipse happened. Sales were decent but not spectacular. Nonetheless we did run out of the shades about a month before the eclipse and ordered more, expecting a decent increase in demand but not a floodgate.

Floodgates Open

The next batch was selling handily and we tried to order more before they ran out and were told by our supplier (American Paper Optics) that they would be unable to fill any more orders as they had over 18,000 orders in need of filling. Most of these were custom orders that needed printing, etc. They were overwhelmed.

Still we had an OK supply of Eclipse Shades in the store. We figured we would run out before the eclipse but that people would understand and find other sources.

Amazon Drops the Ball

A little over a week before the Eclipse, Amazon suddenly refunded anyone who purchased eclipse shades, solar filters, and other solar viewing items. They advised people not to use those shades as they were not approved for solar viewing. Sadly some vendors selling decent eclipse shades were caught up in this firestorm but more importantly thousands of customers suddenly found out that their shades were defective and to use them might be dangerous.

So now in addition to the usual last-minute customers there would also be a legion of customers who did plan ahead but found their equipment compromised and in need of replacement. On August 12th we sold the last of our Eclipse Shades, and the flood gates for requests started to open. BY the 14th we had noticed we were getting quite a few calls, on the 15th we got even more calls. By the 16th we decided to start keeping track. Here was our final tally:

Most of these were phone calls, but a number of them were people coming to the store itself. The phone simply would not stop ringing and it got to the point where we wanted to answer the phone “Thank you for calling Spectrum Scientifics, we are out of eclipse shades!” to save time. But hat seemed a little rude.

Naturally, when we explained that we were out of eclipse shades many folks asked where they could get them. Here is the timline of what we advised:


8/16: Suggested that they try the stores at the Franklin Instute Science Museum.

8.17 : Franklin Institute is apparently out of eclipse shades. Rumors are that several 7-11 stores have them as an impulse item. Media notices the shortage and reports the troubles finding them.

8/18 : Customers tell us they tried 7-11 and they are all out of them, tales are told of travelling for hours to get to a 7-11 that might have them

We now advised customers to attend events where libraries, local television stations and other locations would be handing out the glasses. These events are overwhelmed and run out fairly quickly.

8/19: Over 100 inquiries in one day. We are advising that customers use projection systemsfor viewing. Some customers ask if we are selling such items (we are not as they are constructed out of cereal boxes).

8/20: Inquiries decline slightly as people read in the media that there are no eclipse shades to be had. It is the day before the eclipse. Still, over 70 people inquire about them.

8/21: Eclipse day!  Calls are still coming in as we set up our telescope to show a projection of the eclipse:

Many people on the street gather around to watch the projection. Several try the ‘smartphone shooting over the shoulder technique’, others come by with carboard projection systems they have built themseleves. Cars even slow down on Main St to look at the eclipse projection. Thankfully no traffic incidents happen as a result of this…

And we continued to get calls about Eclipse shades!

Until the local peak had passed there were people calling about buying eclipse shades. To be fair they did understand that they were the very definition of ‘last minute’ but there wasn’t much we could tell them at that point. During our store event we had a couple of sample pairs that we passed around for people to use. It turns out a single pair could could be shared among a dozen people without much incident.

The Aftermath

On April 8th, 2024 (an unusually short time) there will be another total eclipse in the USA and this time, if we are still around, we hope not to get caught off guard. Will the wisdom of last minute shoppers change? (Our experience with holiday shoppers says ‘no’), will people try to re-use Eclipse Shades from 2017? (Doutbless some will, but they should not as they really should not be used after a year or two), and we cannot expect Amazon to mess up like they did in 2017.

We are looking forward to it.


On August 21st, 2017 a large portion of the Continental US will experience a total solar eclipse. Much of the rest of the continental US will experience at at least a partial eclipse: Philadelphia will have about 78% totality, NYC 75%, Washington DC 84%, Chicacgo 88%, Los Angeles 70%, Seattle 93%, etc.

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Spectrum Scientifics opened in 2007 with a load of great science toys for our customers. Since then we have seen many toys come, some toys go, and some toys get pulled from the shelves for one reason or another. Here is a list of the toys we have seen get removed from the toy list.

Note that this list does not include anything recalled due to potential ‘pieces break off and cause choking hazards’ and similar issues. We are discusing products that inherently had an issue that made them unsafe, or were used in an unsafe manner. This in no way claims to be a complete list.Merely the ones we have observed.

Not all of these things were permanently banned, either, as you will see:

Battat Magnetic Construction Toy, 2008

It seemed awesome, metal rods and magnetic balls would be used to put together nifty shapes! Great! Sadly the shiny metal magnetic balls were too tempting to swallow and they were powerful enough that two of them could ‘pinch’ in a kids intestine.

Battat and other companies rereleased this toy design with more secured magnets and non-magnetic steel balls.

Water Balz: 2012


Similar to popular Water Marbles, Slippery Spheres, Orbeez, etc, except these Water Balz were big! Much bigger than the little marbles that were Orbeez & Co:



Sound great? It was! But then an abusive parent shoved one down a child’s throat and it expanded with the moisture,  causing about what you would expect to happen. Toy suppliers volutarily removed the product from the market. You can still get them, but they are sold as chemistry equipment/gardening items, or whatever is needed to not have children as the primary target market.

CSI Fingerprint Kit: 2007-2008

We never carried this item, because we tend to avoid premium show-based kits which often just cost twice the price of better science kits.  But here it was in all its glory: A fingerprint kit with a chemical that was 7% asbestos. Ooops!

This incident, along with several other famous cases (such as the Thomas the Tank Engine Lead Paint incident) showed there were many problems with sourcing products in China. Too many times corners were being cut, and dangerous products being substituted, and other safety issues. Toy companies that imported had to start doing local testing of the products for safety, and quite a few gave up mass-importation. In China, things got very ugly with at least one head of a factory traced back to the safety issues first imprisoning an investigating journalist then hanging himself.

BuckyBalls: 2011

Incredibly popular when they were out, now these have almost been forgotten. Buckyballs were technically never sold as a toy for children, and the manufacturer took pains to try to keep them out of the hands of kids. But the Consumer Product Safety Commission, after adding on multiple sales conditions restrictions,  finally demanded the magnet sets be banned. The reasoning was the same as happened with Battat’s construction toy: kids swallowing the magnets would have them ‘pinch’ in the intestines. The company pretty much disappeared after this ban, but returned this year with a smaller, complient tiny magnetic ball kit.

But the magnet ban? It sent shockwaves through the toy indutry as toy sellers scrambled to remove the powerful rare-earth magnets from various toys.

Eventually, another manufacturer of the magnetic balls sets won a lawsuit against the CPSC and the magnetic balls sets are once again legal. But still cannot be sold to children.




Lasers, we do love our lasers! From the classic Red, to the bright Green, to the sneaky, changing Violet we love the fact that we can have such a unique pointing device in our hands.

But laser pointers have undergone a few changes in recent years, and some of the changes may be hard to figure out. Times were they were all like flashlights: one end would screw off and you would insert the batteries (AAA or button cell). They would resemble this laser pointer:

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It’s been just under a year since we had an update about the CPSC’s favorite target: Those little spherical magnets commonly known by the brand name of BuckyBalls.

As you may recall, BuckyBalls came on the market a few years back, made quite a splash, but were then hounded by the Consumer Product Ssafety Commission to the point where these magnets were effectively banned.  Another spherical magnet supplier, known as NeoCube, also fell by the wayside, but a 3rd company, the almost unknown Zen Magnets (who apparently were first in with the product but last in overall sales due to BuckyBalls and NeoCube’s aggressive wholesaling campaign.) made the effort to fight back at the CPSC and actually won their court case.

Sadly, that was not the end of it. Zen Magnets has spent the better part of the past year just getting things in order for a new rollout of the classic spherical magnet product. Meanwhile they are bracing for another possible round of legal battles with the CPSC.

It might not come to that. The CPCS commissioner is on record as saying the following:

“We’re doing this without taking the time to learn the lessons about why we failed the first time, or if there’s any need for the rule… I think this is a factor of pure ego, and this agency has taken the thoughtful opinions of the 10th circuit personally, and we just wanna win for winning’s sake…”

The CPSC removed the rule on 3/1, as ordered by the court. But almost immediately the commission voted to implement a new rule regarding magnets. The precedent is set, however, so a rule as draconian as the last one would be lost in court even faster.

Meanwhile, what happened to the other companies? No idea what happened to NeoCube – their inventory was sold Zen Magnets (which may have caused them quite a bit of a legal headache) and we can assume they are long gone. Zen Magnets is in position to restablish spherical magnet sales. The folks who made BuckyBalls? Well, while Zen Magnets was fighting the legal fight against the CPSC they released a set of tiny rare earth magnets that they sarcastically named ‘Compliance Magnets’

Perhaps taking a hint from these Compliance Magnets, the makers of BuckyBalls released SPEKS. A set of rare earth micromagnets that is also compliant with the CPSC’s old rule.

Time will tell if they succeed with this product. Having personally handled such ultra-tiny magnets I find they had some appeal, but lacked the fidget potential the classic larger Spherical Magnets posessed.


As for our store? Well, we have our own (as the top image shows), and can sell them until another ban comes down. Sadly we can only sell these in-store at the moment.


Our ‘10 Fun Facts about Labware” blog post was actually pretty popular (the internet loves lists), so we thought we’d do a sequel to talk about other oddities of the labware world.  Here we go

10) Condensers are all about the surface area and Hollywood loves them – So you’ve got some gas, right? And you need to get it back to liquid state, right? Because that gas is gonna disspiate if you just let it run free, but how can you get it cool enough to turn liquid in a limited amount of space and have that liquid end up in a flask or something else? The answer is a Condenser!graham

Condensers (particularly Graham condensers) are popular in Hollywood depictions of laboratories as they have that neat swirly tubing inside another tube. Run some colored liquid through them and they look awesome!

But why all that swirly tubing? Well it turns out that you need a decent amount of cooling to turn a gas into liquid. So the curling tubing is actually trying to expose the gas in the tube to as much of the cooling liquid that fills the outer tube. That liquid (usually just water) is fed in from the top and drains out the bottom as it would otherwise get too warm to cool down that gas before it exited the tubing.

Hollywood, BTW, loves showing condensers because it is neat to watch liquid swirl through all that spiral tube, even if it would serve no purpose as shown.

9) Attachment sizes and what they mean – Every now and then you might encounter a piece of labware that has some numbers associated with it. 24/40, 19/22 , and many other sizes. So what does this mean?

3590Well this is a measurement to see if one piece of labware will attach with another. The sizes denote ground glass openings on the flask, condesner, etc and therefore should be compatible with a labware with the same kind of measurement. When these attach, the ground glass openings provide enough friction to keep them connected but not so connected that they cannot be seperated easily.

As to the actual numbers and what they mean – the first number corresponds to the diameter at the end of the ground glass zone (so 24 is 24mm) while the second number corresponds to the length of the ground glass zone (so 40 is 40mm).


8) Evaporation flasks  – So the opposite of condensation is evaporation. Naturally there are a lot of ways and reasons to evaporate liquids, the most common being to simply boil it. But sometimes you need a less…energetic way of evaporating liquids (volitiles like alcohols, for example, may not rotaryevaporatorappreciate flames). So one common method is to use a rotary evaporator:

Rotary evaporators are fairly complex systems that pretty much just speed up (and contain) what would otherwise happen to low-boiling points liquids exposed to room temperatures. You’ll sometimes see special evaporation flasks with oval shapes: these are designed to get the maximum surface area on the heat section of a evaporation system.


7) Filtration:
Sometimes you may spot a Erhlemeyer Flask with a tube sticking out of it. 5444-2This is called a filtering flask. It uses a couple of other pieces of equipment to operate: First a felxible tube is attached to the glass tube and then to a pump (powered or hand operated). A stopper with a hole is put into the top of the flask which goes to a filtering funnel known as a Buchner Funnel. Some filter paper is placed into this funnel. You then activate your pump (which means you have some hard work if a hand pump is being used). The liquid in need of filtration is then slowly added inot the top of the funne;. The drop in air pressure pulls the water through  the filter paper and funnel leavs behind any solids or other materials.


6) Volumetric Flasks:
1886If there is a ‘piece of labware most likely to be repurposed’ it is the Volumetric Flask. With its long stem and round bottom it is possible they beat out ‘small beakers turned into shot glasses’ by being turned into flower vases. But the volumetric flask actually has an important role in chemistry. If you need to make a solution of a particular Molar (a measurement of how much of a reagent is in a set quantity of solution) the best way is to use a Volumetric Flask. Measure out the quantity of reagent for the solution you are making, and add it to the measured solution in the flask. IT is as accurate as you can get and the best way to mix said solutions. The Volumetric Flask combines the accuracy of a graduated cylinder with the mixing ability of a normal flask (Such as a Ehrlenmeyer flask or round-bottom flask)

5) Separatory funnels:

This odd-looking inverse teardrop shaped piece of labware may, oddly enough, be more familiar to some readers 3218of this blog post as they are often used in beer brewing and similar hobbies.  Separatory Funnels are used when you need to seperate two liquids from each other (such as oil and water, yeast and water, etc.). The differing densities of liquids well seperate out inside the funnel (some shaking may be involved). Once sepearted the more dense liquid can be drained out the tube in the bottom, leaving the less dense liquid remaining in the flask.

4) Labware for a new generation (Class A Coding)

OK, so this is an issue for laboratories where critical measurements are required. As we mentioned in our previous chapter there is special labware known as ‘Class A’ labware. This is labware certified to extreme accuracy and even has to be certified, either by the batch or individually (which is more expensive). The problem is that labs may be required to show that their labware is certified for one reason or another. The certification, however is usually a piece of paper that gets filed away or lost, leaving the lab struggling to find the right papers and possibly contacting the manufacturer. So what solution is there? A modern one where your Smartphone can check your labware’s certification. That’s right, Class A labware’s certification will soon be bar-encoded!


Now rather than running to the file cabinet you can simply catch the barcode on your Smartphone and your certification will come right up! Couldn’t be easier!

3) Lipless and Lipped Test tubes

So test tubes come in two forms – with a lip (which helps with pouring) and lipless (which….has no real advantage). Plastic test tubes typically are lipless to reduce expense. In fact it is not certain why lipless test tubes are made except that many folks buy them for no-laboratory uses. Most of the ones we have sold a the store are repurposed – usually to hold flowers (its a thing).

2) Types of plastic labware and what they do

So we discussed plastic labware in the previous chapter. But there are actually several types of plastic that are used in labware. Polyproylene (PP), for example is economical and very hard to break. Unfortunately is it also not as transparent as glass and may be hard to read the markings. Polymethylpentene (PMP) is as clear as glass so is much easier to read. Unfortunately, it is also much more expensive than PP and may be more p50902brittle. It becomes a question of priorities.
1) Plastic Pipettes and their uses

Little plastic pippetes are another item in heavy use outside the laboratory. These little soft plastic droppers come in a wide variety of sizes and shapes. Some are measured, some are not. They can come sterile or not, etc.

In the lab and medical field they are used to draw small, controlled quantities of liquid. In medicine they are used to grab a sample of blood from a source (they are not used to draw blood, obviously).

Outside the lab? The limits are people’s imagination! Gold Hunters use them to draw the small flakes out of liquid known to have gold flakes.. Bakers use pipettes to both insert fillings into cupcakes and cakes (to make patterns they could not do otherwise) or even just fill them with coloful icing and stick them into the cake to make an attractive ‘bulb’ cake ornament. In addtion to icing, liquers can be used, or other flavorings. Food artisans have taken to using pipettes to ‘inject’ fruit with various flavorings as well!





For the hobby of astronomy, the biggest obstacle of all time is light pollution. Hands down. The more lights in yiour area, the less you will see.

We try to fight it when we can. Petition for lights that reduce upward glare, maintain some dark sky locations, and advocate for limiting new lighted areas. But on an individual level, there is only so much we can do to fight light pollution.

One of those things is to employ a light pollution filter.


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