James Watt's end measuring instrument with micrometer screw,1776, probably the first screw micrometer made. Let's build one with what we have.
For more information, check this video; [ Ссылка ]
![](https://s2.save4k.ru/pic/JbpH8JBPMvY/mqdefault.jpg)
James Watt's end measuring instrument with micrometer screw,1776, probably the first screw micrometer made. Let's build one with what we have.
For more information, check this video; [ Ссылка ]