Sentences with phrase «than the head of a pin»

A tiny switch, no larger than the head of a pin, is built into a ring for example, and worn on the body.

This past year, mechanical engineer James Friend of Monash University in Australia crafted a robot motor just a quarter of a millimeter in diameter and 2 millimeters long, smaller than the head of a pin.

But in this case the aircraft is piloted by 25,000 rat neurons in a tiny dish, hooked to an electrode array hardly bigger than the head of a pin.

The «microscale magnetic tumbling robot,» or μTUM (microTUM), is about 400 by 800 microns, or millionths of a meter, smaller than the head of a pin.

«From a sample not much larger than the head of a pin we can learn a great deal both at the individual and species level.»

These are very small samples, no bigger than the head of a pin,...

Sönnichsen's team of scientists have designed a sensor no larger than the head of a pin but capable of performing a hundred different individual tests on a surface that is only of one - tenth of a square millimeter in area.

TUM (microTUM), is about 400 by 800 microns, or millionths of a meter, smaller than the head of a pin.

Larval ticks may be smaller than the head of a pin, whereas some adult ticks are larger than a corn kernel.

* The snail's mouth is no larger than the head of a pin, but it can have over 25,000 teeth!

Imagine having a fax machine that's smaller than the head of a pin, lighter than a feather, mobile enough to take everywhere, and useful enough to receive faxes from anywhere.