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*When draftsman had a very bad hangover and hair of dog that bit him fail very badly . I saw this for first time about 1970 in all engineering offices*

St. Elmo's fire (also called witchfire or witch's fire)[1] is a weather phenomenon in which luminous plasma is created by a corona discharge from a rod-like object such as a mast, spire, chimney, or

Here a link for white lead sub https://www.kbctools.ca/itemdetail/?itemCode=1-820-401 Dave

The following items have been added to the Files area of the [email protected] group. * /9) Lubrication and cutting oils/107006-1701-Insted-A-Led-1-.pdf (

davesmith1800 <davesmith1@...> added folder */9) Lubrication and cutting oils* *Description:* This for 1) Lathe and Mill oils and grease need 2) Cutting Oils 3) Water coolant

*Herd few photos of a Bubble Sextant sometimes know as Bubble Octant too. Used main in Aircraft some times on land* *Used atless into 1950’s. This style I do not know how long it was around .* *Note

Sounds great too It will work too. It bouns that makes work to a senceres like you said a mini metal detector and time. When purchased the first I play around with aluminum Found about 18"? drop I

Voltage would be pretty low, but I'll bet the current is pretty good. 200mm long pipe, not cm.

Should figure out how to measure the induced voltage. Would be a cool addition to the demonstration.? Bill in OKC? William R. Meyers, MSgt, USAF(Ret.) Aphorisms to live by:Good judgement comes

I know feeling of Harry Potter magic wand and dropping ball. Back in 1970’s when first purchased it I would be ok for cast iron wheels and if work i would be happy. I was very surprised how well it

You need to make a chart for ceramic bearing balls. *Blacksmith use for long time.* *The machinist hammer ball is used for hardness too.* *The one purchase in 1970’s the patten was in not losing

Any charts for ceramic bearings so you don't need to worry about magnetism? BTW, I did a demo of magnetism with non-magnetic materials. Dropped a strong magnet through 200cm of 10mm copper tube.?

*Remember the surface being bounced test needs to clean of oil , any coating and Degaussing.* *This note is not on drawings*

Update include at bottom knots and km.

Chart on degree vs miles and time vs miles

If ever break a tap here a low cost