Data logger, oscilloscope, signal generator and more!

DrDAQ is a versatile instrument that connects to the USB port of any PC. Using the supplied PicoScope software it can be used as an oscilloscope, spectrum analyzer and signal generator.

From just £89.00


Testing the effect of insulators on the rate of cooling of water


Material End temperature (°C) Drop in temperature (°C)
Polystyrene (Styrofoam) 53                 12
Control  55 20
Bubble wrap 55 12
Control 53 16
Paper 50 14
Control 55 19
Foil 6 18
Control 70 17
Wet paper 40 25

Answers to questions

  1. Bubble wrap and polystyrene.
  2. The air trapped in the bubbles or foam is a poor conductor.
  3. The wet paper towel. Water evaporates from the paper towel and cools the water down.
  4. I was expecting the foil to reflect the heat energy back into the water and therefore stay warmer. It is more lightly that this is balanced against the foil conducting heat energy away from the water so there is little difference between the foil and the control results.
  5. It is difficult to start both boiling tubes at exactly the same temperature. This could be solved by busing a second person to help set up the experiment of having both boiling tubes heated to the same starting temperatures by an electronic water bath. This problem is most apparent in the experiment with the polystyrene. The polystyrene container starts cooler than the control but then cools more slowly (12 °C).
  6. As water evaporates it uses up heat energy from the surroundings. (The amount is described as the latent heat of vaporisation). If your body has water near it that heat energy will come from you, cooling you down.
  7. As above, as the sweat evaporates from the skin the skin cools.

Credits, comments and further info

This experiment was written by staff at Sawtry College.


  • I have been using my 4224 PicoScope for years. I travel abroad so this has been ideal due to its physical size. Storage of waveforms on my Laptop is very easy allowing me to quickly email waveforms to my Colleagues.

  • Not many USB scopes works on Win & Mac & Linux too, so that proves me that guys from Pico really cares about us, customers. This made my decision much easier when I was looking to buy an USB scope.

    Raul Trifan
  • We have been using Picoscope 6404D for quite some time, and are amazed by its accuracy and powerful emulations while working with numerous signal evaluations.

    J Mohanty
  • PicoLog TC-08: This is a very nice unit that works consistently and reliably.

    Jeff Hulett
  • It is a great scope. I had a weird problem - it did not work on one of my PC’s. Customer service gave me first class service. If I could give 6 stars for customer service - I would do so.

    Niels Larsen
  • Perfect Partner for Development of Encoder controlled Stepper Motor Actuators. Since the included software is really stable, this type of device is a great tool for great tasks!

    Helmut Schoettner
  • A superb piece of equipment worth its weight in gold

    Nigel Clinch
  • So simple to use & beats any other I have ever used hands down.

    John D Samsing
  • Great functionality in a compact size. I really like moving the mouse pointer to a position and having the Time and Voltage display the values at that point. Calibration equipment is a breeze with that feature.

    Don Horein

PC oscilloscope and data logger products

Tel: +1 800 591 2796 (Toll Free)