What’s YOUR Interest?

A simple machine is a mechanical device that changes the direction or magnitude of a force. In general, they are the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. The six classical simple machines which were defined by Renaissance scientists are:

Lever
Wheel and axle
Pulley
Inclined plane
Wedge
Screw

from Wikipedia

The simple machine was the beginning. We could take a simple machine and multiply our efforts. Then …

Substitution as makeshift is when human ingenuity comes into play and a tool is used for its unintended purpose such as a mechanic using a long screw driver to separate a cars control arm from a ball joint instead of using a tuning fork. In many cases, the designed secondary functions of tools are not widely known. As an example of the former, many wood-cutting hand saws integrate a carpenter’s square by incorporating a specially shaped handle that allows 90° and 45° angles to be marked by aligning the appropriate part of the handle with an edge and scribing along the back edge of the saw. The latter is illustrated by the saying “All tools can be used as hammers.” Nearly all tools can be used to function as a hammer, even though very few tools are intentionally designed for it and even fewer work as well as the original.

from Wikipedia

Here, at Bahoukas Antique Mall, we have a variety of tools for nearly every need. We have a wonderful assortment of vintage tools used for woodworking. But check these out for a different peek at what you might find on a shelf :

Collectible microscope at Bahoukas Antique Mall in Havre de Grace, MD  Comptometer - Bahoukas Antique Mall in Havre de Grace  Vintage blood pressure cuff at Bahoukas in Havre de Grace, MD 

On the left is a beautiful microscope that just might delight a young person learning a bit of science! In the center, well, this is quite the calculator. What we can do on our smartphones is so much more than the efforts made with the Comptometer! Here’s a great video explain the mechanics behind the Comptometer. You can see how the ‘simple machines’ noted above make up the way these machines worked.

 

Do you wonder how you use them? Here’s another video. You can advance to around 3 minutes to see how to use it. 

 And finally, we have an old version of a tool/instrument to read your blood pressure. It’s intriguing to see wrist cuffs now that do the same. 

Keep in mind, that tools started with the simplest machines noted above. Later, when you added steam, electricity, transistors, all leading to the computer age and the use of chips. Tools and instruments are fascinating. If you’re an older person, you’ll remember many of these transitions. If you’re a younger person, it might be fun to understand the development required to have the amazing tools you use today!

Hey, stop in and visit us at Bahoukas Antique Mall and Beer MuZeum. We love chatting. And yes, we’ll be watchin’ for ya!