If your Vernier Barometer readings do not agree with the local weather reports, it is because you are looking at two different kinds of readings. "Station pressure" is the actual pressure at your site, or station. This is the pressure a mercury b...

The most common problem is that the power supply driving the light source is noisy, causing a 60 or 120 Hz flicker of the light level from fluorescent, incandescent, or other lamps. Your eye does not pick this up, but the sensor will. You may be ...

Yes. The Exercise Heart Rate and Go Wireless Exercise Heart Rate both use the Exercise Heart Rate Strap. This strap is compatible with the Polar Transmitter Module that comes with our heart rate sensors. Polar H7, H9, and H10 modules are all com...

Using DataMate and a CBL 2 or LabPro interface To use an Instrumentation Amplifier with a TI Graphing Calculator and a CBL 2 or LabPro interface, connect your calculator, and Instrumentation Amplifier to the interface and start DataMate. Then do th...

pH electrodes will NOT give accurate pH values in distilled or deionized water because distilled and deionized water do not have enough ions present for the electrode to function properly. The readings will drift and be essentially meaningless. If y...

The listed range of our thermocouple is -200 to 1400 Celsius. The Flinn catalog (p 205 of 2004 edition) lists temperatures up to about 1600 C. These temperatures are, we think, measured optically. In our tests with our thermocouple in bunsen burn...

Yes, all of the individual parts found in the Pressure Sensor Accessories Kit (included with each Gas Pressure Sensor) can be ordered as separate pieces, using this order information: Luer-Lock Connector (PS-LUER) Plastic 2-Way Valve (PS-2WAY) ...

See the article "Electrostatics with Computer-Interfaced Charge Sensors" by Robert Morse in The Physics Teacher, vol 44, November 2006, pages 498-502. This short article is an excellent introduction to simple experiments for charge sensors. For m...

This sensor is no longer available. Information is presented for reference only. Student Radiation Monitor (SRM-BTD, discontinued) Specifications and User Guide Troubleshooting Primary Test: Is the 9 V battery good? Ar...

Here are some helpful tips to follow: Use fresh spinach for photosynthesis studies. Check to make sure it is fresh and that leaves are turgid because wilted spinach will yield poor results, as will spinach that has been treated with preservative...