Author: ndalton

Egg dyes

Bluish-GrayMix 1 cup frozen blueberries with 1 cup water, bring to room temperature, and remove blueberries. BlueCut 1/4 head of red cabbage into chunks and add to 4 cups boiling water. Stir in 2 Tbsp. vinegar. Let cool to room…

Electricity Timeline

1800  For the first time Allessandro Volta (Italian) produces a continuous electrical power (as opposed to a spark or static electricity) from a stack of silver and zinc plates. With the invention of the battery (Allessandro Volta, 1800) 1820  Hans…

Dying Easter Eggs with Tea

Dying Easter Eggs with Tea Tea makes a light tan Easter Egg. When make it easter eggs there are a few tips to successfully making eggs.  See tips. To make Easter Eggs dyed withTea put a tea bag or teaspoon…

Dying Easter Eggs with Yellow Onion Skins

Dying Easter Eggs with Yellow Onion Skins Yellow onions skins make a beutifull red Easter Egg.   By wrapping the egg with skins you can create batik-like look to the eggs. When make it easter eggs there are a few tips…

Tips on making boiling eggs

Here are some tips on boiling eggs with natural dyes. Use old eggs Eggs that are older (5 days) will peel easir than fresh eggs Let the eggs warm to room temperture (15-20 minutes) This helps prevent cracking Put eggs…

1745 – Capacitor/Layden Jar

1745 – Capacitor/Layden Jar – Pieter van Musschenbroek

Pieter van Musschenbroek and his assistant, while trying to get sparks using glass with in it water, a wire and a charged  glass tube.  His assistant held the jar in his left and with the wire in the water and the other end of the wire in the charged tube.
When he touch the wire there was a large spark and he felt a in his body.

Later they would add a stopper and wire with a ball.  This became know as the layden jar, named after the  university of Leyden where the experiment was done.

There was another person Von Kleist who may have done the experiment first, but Pieter van Musschenbroek account was clear and repeated by other. 

Pieter van Musschenbroek was also the first to use the term physics.

Experiment – Layden Jar

1729 – Conduction

1729 – Conduction – Stephen Gray

Stephen Grey was a dyer by profession, but had interests in astronomy and natural sciences. His education  was mostly self educated.  We he retiremented he experimented with static electricity. In one experiment he used a glass tube which he kept the ends closed with cork, to keep the tube clean.

He noticed that when he rubbed the glass tube the cork, attracted items. He put a stick into the cork and was able to extend attraction. He began to do experiments to see how far he could extend the effects.

This was the beginning of experiments with conduction, the ability to move electrons through materials.

Experiment – Conduction

1709 – Glowing discovery


1709 – Glowing discovery – Francis Hauksbee Francis Hauksbee, also known as Francis Hauksbee the elder, experimented with mercury after hearding of the account that the french astronomer Jean Picard in 1675 had observered a faint glow while caring a mecury barometer.

He discovered that mercery in a glass cantainer exposed to static electricitity can glow bright enough to read by.   This is called electroluminescence.

Francis Hauksbee make a modified static electric generator like Otto von Guericke’s, which had mercury in the glass ball with a partial vacuum.  When it was spun and a hand placed on it, it gave off light.

Experiment – Glowing discovery

1660 – Static electric generator

1660 – Static electric generator – Otto von Guericke

Otto von Guericke invented the first static electric generator. It was a sulfur ball on a rod that can be hand cranked and rubbed with a object to generate static electricity. He heard crackling and felt the hairs sand on end. Soon other in Europe were copying it and making improvements.

Experiment – Static Electric generator