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Monthly Archives: June 2008

30 Jun

The difference between a pH reference electrode and a double junction electrode is that the pH reference electrode leaks electrolyte solution , thus you will have to replace the electrolyte solution periodically. People who work out in the field can … Continue reading

26 Jun

Specific Gravity is a measure of the density of a liquid relative to water. Specific gravity measurements are essential to many industries. Wine makers use specific gravity to monitor the fermentation process. These measurements would be taken with a refractometer … Continue reading

19 Jun

“I don’t have anything to do.” How many times have we heard those words (or said them ourselves at 7, remember)? Sure we can park in front of the TV or video game but even that gets old after a … Continue reading

17 Jun

Well, it’s that time of year when our 5th and 8th graders will be coming home begging you to help them with their science fair projects; that were handed out to them over a month ago! Isn’t that ironic?! It … Continue reading

11 Jun

Syringes are not just for the Doctor’s office. For instance Popper offers syringes and needles for industrial, laboratory, and veterinary use. These reusable syringes can be ordered in a wide variety of volumes, needle gauges, and needle hub designs. Hamilton … Continue reading

09 Jun

A lens is a molded piece of glass, plastic or other transparent material with opposite surfaces either or both of which are curved, by means of which light rays are refracted so that they converge or diverge to form an … Continue reading

06 Jun

When some molecules are exposed to the correct wavelength of light they are excited to a higher state, the molecule then drops back down to a normal state and emits light at a lower wavelength. This emission of light, Fluorescence, … Continue reading

04 Jun

Hoods, Cabinets, and Glove Boxes at Researchers very often need to use laboratory enclosures to be protected from their projects. The nature of the experiment itself will determine what kind of enclosure is necessary. A chemical hood (fume hood) … Continue reading

03 Jun

A little history on thermometers: Gabriel Fahrenheit invented the first mercury thermometer in 1714. Some history reference books state that Galileo Galilei invented a very imperfectly developed water thermometer in 1593. It was a device that consisted of a long … Continue reading