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Modern technology was the main problem

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12y ago

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Difference between an arrowhead and a kite in maths?

The difference is surely that an arrowhead has one reflex internal angle where a kite does not.


How many sides does a quadrilacteral?

it has 4 sides but the basic shapes tend to be a square, rectangle and kite


What are 3 Chinese inventions that still exist today?

1 is the fireworks 2 paper 3 printing and other things like A kite!


2 ways to produce electrical energy?

The old fashioded way: kite+key+crazy guy+storm=electricity or placing wires in a lemon and around a light bulb. It's a pretty cool experiment if you haven't tried it yet.


What can you mix with industrial diamond abrasive to make a grinding wheel?

Carborundum and Granite are materials commonly used in the manufacture of grinding wheels & disks, although modern polymers such as silicone (in its various guises) are also used to aid the cohesion of the wheel. In grinding and cutting disks there is usually a fibre matrix of some kind. This helps prevent the disk shattering when exposed to load. Making ones own high speed grinding wheels is not a task for the layman. While it IS possible, it should be born in mind that such wheels need to be perfectly ballanced in order to be safe for use. There are many industrial standards when it comes to these tools, not least of which being the Kite mark and CE mark. The standards are in place for very good reasons. A poorly made grinding wheel is liable to shatter or even explode when placed under load. Where larger wheels are concerned, an incident such as this could prove fatal to both the operator and any by-standers.