#1 Science Forum For Lab Technicians

I bought these about a year ago, and half have issues already. Has anyone else had issues with them or ideas about what the problems I am having are? The main one that has stopped working is the 5A, but in some cases, it is everything. I have opened them up, but I can't see any obvious issue - no ch...

That is the question, right?

I am talking about hook-up wires with either banana plugs or alligator clips. Is it worth spending the time to solder them?

Marama T wrote: ↑25 Sep 2024, 09:45 And yet you can buy it at Bunnings for household cleaning and laundering.

You can also buy concentrated hydrochloric acid at Bunnings for cleaning, bleach at Coles...

It is allowed in NSW public schools 7-12 under CSIS but in my experience, not many schools allow it.

That looks amazing!

I sign the lab tech part and leave it open, or if the risk is high, get the HT to sign their part. No one double-checks what we normally sign anyway. It is normal to have just us check that part anyway.

I have only ever used a triangular metal file.

Merilyn1 wrote: ↑25 Oct 2019, 13:37 I'd happily pay for something like that.

So would I!

We had a garbage truck have to dump it's load behind our school after the rubbish caught fire, they believe from a lithium battery. Thankfully we were downwind.

I am soldering some boards in the fume hood, and significant wind is coming through from outside (where it is very windy). The fumes are blowing back into the room rather than being sucked up! I have certainly experienced this before, but it was the first time I questioned whether the hood was helpi...

They look OK . All metal .and have a brass axial . my only concern is the strength of the sides and how well the hooks are attached . We're going to order 20 singles and 10 doubles and see what they are like . I bought 10 sets. They won't be used until next year but I'll update once I have them in ...

We recently transitioned to these lighters from BOC and will never go back to matches. No more security concerns, no more matches down drains, no more refilling after every lesson. I only give out two per class, and the teachers collect them as soon as possible to prevent the flint being ground down...

At my old school , we had solid metal ones .They had proper pointed pivots and adjustable bearing cups . ......and they were over 60 years old . I want all metal ones also. Our kids are rough on equipment, and plastic would only last a year or two! After a fair bit of searching, I found some metal ...

What pulleys do you need for junior classes? I would love some recommendations for which pulleys last the test of time. We are only a junior school, but students can be quite hard on the equipment. I would prefer something that is metal, but I am not sure if we need ones with hooks, clamps, rods, do...

If you school is throwing away the expired COVID tests, see if you can get the sterile swaps from them!

I can't post links or pictures, but google "gas collection beehive gas collection" and look at the images. Thats how I have always seen gas collection done in schools.

Does anyone have some stick insect eggs they can part with?

I believe that if they haven't grown anything, haven't dried out or gotten too wet, then they are fine for up to 12 months.

They should be fine.