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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

I agree ? *Thank you for bringing the time up.* It surprising what how far lust one minute off is at the equator. Calculation 1 Diameter at equator (1/1) 24,500. ÷ (1/2) 24. = One hour at

*?*?How Accurate does a?*?* *?*?Celestial Fix need to be?*?* *This also includes GPS ?* Part 2 of 2 ? Celestial navigation is used when you are far out at sea, when no other

Need a good watch if you want latitude and longitude.

*?? Sextant vs GPS ??* Part 1 of 2 GPS is the most accurate around 40 inch or 1 meter. The drawback list. * Satellite ? and other countries take out * Satellite and space debre * Sun

Thus what need next Halloween

Found the bug is a mouse Now need a mouse trap to fix my wires

Most production machine Shop will have this for both quoting and doing. This also used in design and? engineering so can receive the finished whan on part. This finished can change the cost of

Chart on different hard scales

Here what put book in 2015. It from the hardness tester I have from 1970’s I wrote book before I had 106 Chemotherapy treatments