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As a kid I voraciously read magazines like Popular Mechanics and Science & Mechanics.? One project was to make your own carbon arc.? You take D cell batteries, cut them open, and get the carbon rods

Even simple experiments can be fraught with adventure and excitement. In 1st year college chemistry (about 1962), our very first “experiment” was generating oxygen by heating potassium chlorate

When I was in college, kept my deer rifle in my room in case I had a chance for some hunting. Obviously a few years ago..... [email protected]> wrote:

I graduated from a California high school in 1970, when I drove my pickup to school, in the gun rack was either a 3006 or a shotgun depending on the season.? Ammo was in the glove box, parked in

Florescent lights are not necessarily UV, there may be some UV component but the actual light color emitted is caused by electrons flowing through the tube energizing the coating on the glass. The

Hi Gang: Also blue LEDs are UV and make a blue with a fluorescent. Carl.

My house and rental had mercury thermostats until I replaced them in about 2008.? I save all the mercury I come across.? Why?? it's just interesting and I want to keep in out of the landfills.??

I have a antique Sun lamp on a roller pedestal. It has a huge bulb that has at least a tablespoon of mercury in it. It still works and when it is on the mercury vaporizes, The base is one huge

Haha!? I was going to mention that, but figured no one would get the reference; I should have known better! -Dave

I have an unused mercury switch and it's printed cardboard box from my grandfather.? He was a bike cop in Oakland CA in the 1930s and one of his fellow bike Officers went down and the bike drive

Jeff wrote : "I have a mercury vacuum gage that is made to synchronize carburetors on motorcycles up to 4 cylinders. And yes it still works and I still use it." Jeff, I am envious. I used to have an

IIRC, years ago household "silent" light switches were mercury switches. That would be the Avanti era, the 1960s. Sent: Wednesday, July 17, 2024 10:10 AM To: [email protected] Subject: Re: [Unimat]

A few years ago, at our local high school in California, a student was expelled because a plastic knife was found in his car in the school parking lot which he used to put peanut butter and jam on

Yes.? That's exactly what's in my 1964 Studebaker Avanti.? A mercury switch also used to be commonly used in household thermostats,? It was attached to a bi metal coil that expanded and contracted

My wife graduated in the mid 1970's. She was captain of the girls rifle team. Some of the team would bring their own guns in and keep them in their lockers, with ammo. My dad used to tell us when he

I am old enough to remember when cars used Mercury switch under the hood and in the trunk. When you would lift them up the Mercury moved to the end of a vail and made contact. And the lights would go

So 30+ years ago we rearranged our Instrument Shop, clean everything out toss and replace with new stuff.? ?One of the items was a quart plastic bottle about half full of mercury recovered from

52 years ago in my high school Advanced Physics class, we fired a rifle bullet into a block of wood for a conservation of momentum experiment.? This was done in the classroom, and I brought the rifle

Don't forget the smell of formaldehyde, the feeling of a scalpel in your hand and pricking your finger to get a drop of blood for blood typing. And also "experimenting" with components in electronics

Yet another blast from the past - Graham Parker is best placed to tell what mercury poisoning is all about Op 17-07-2024 16:02 CEST schreef Bill in OKC too via groups.io