What Is It? - #28

[SifuPhil]

Here we have a nifty little contraption from the early 20[SUP]th[/SUP] century, mounted on a 5" x 3-7/8" wooden base.



Not normally found in the home but instructional to those watching it being used ...

WHAT IS IT?

 

[Phantom]

Gravesande's ring ?
Experiment showing expansion of metal
Ball won't fit through ring when cold but will when ring is heated

 

[Diwundrin]

Whether you're right or wrong Phants, that is one really impressive guess. :encouragement::courage:

I'm out.

 

[Jillaroo]

Well i have no idea, but Phants sounds good:dunno:

 

[That Guy]

i'm with Phantom.

 

[SifuPhil]

Gravesande's ring ?
Experiment showing expansion of metal
Ball won't fit through ring when cold but will when ring is heated

That ... is truly impressive.


DING! DING! DING!

We have a winna'!!!

Not much more I can add to Phantom's reply - he gave a textbook explanation!

This specific example was made in London and went at auction for $375 USD.

Congratulations to Phantom!


I think I need to retire from What Is It - I can't seem to find anything you folks can't identify. It's like being an encephalographic idiot at a MENSA meeting ... layful:

 

[That Guy]

Phantom is the champ. Got it right off. Nice!

 

[Jillaroo]

What a clever little fart you are Phants , congratulations:woohoo1::woohoo1:

 

[Phantom]

What a clever little fart you are Phants , congratulations:woohoo1::woohoo1:

Not realy ....... I remember something similar in Science class at school

 

[Diwundrin]

Who's a clever boy? Onya Phants, just as well some of us have had an edjacayshun. :clap:

 

[rkunsaw]

Way to go Phantom