Bulletin 102 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Safety lectures, The future of SSSERC,  ASE Scottish Region Annual Meeting

4(2) Opinion

SSSERC’s law?

5(3) oxygen meters

Oxygen electrodes, used routinely in industry and research for some time, have recently been made sufficiently robust and inexpensive for school use,

9(7) The Exploding match experiment

A safer alternative method  for this entertaining activity.

10(8) Freezing by evaporation: an OHP demonstration

Evaporation of  the water is done by evacuating the space surrounding it using a rotary pump. The amount which can be frozen is very small, of the order of a few drops, so that the overhead projector is used to show the process happening.

12(10) Trade News

ASE Annual Meeting Exhibition report

14(12) Address List

Bulletin 103 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Paying for surplus equipment, Hazardous chemicals manual: distribution.

4(2) On blowing up balloons

Relative rates of deflation of balloons filled with air, hydrogen and carbon dioxide should be in accord with what kinetic theory and Graham’s law would predict. However, this is not so.

8(6) Decimal to binary converter

Asuggestion for a decimal to binary code conversion unit.

10(8) Investigating the simultaneity of two sounds

Do we have any persistence of hearing, like persistence of vision?

11(9) Trade News

12(10) Stations experiments markers

Using marker labels cut from empty plastic bottles.

13(11) Oxygen electrode stirrer

The rate of stirring of the solution affects the rate of oxygen transfer, which could therefore affect the meter reading. We offer a solution.

14(12) Address List

Bulletin 104 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Saturday morning opening. ASE meeting on Safety in School Science, Biology symposium to launch the Scottish Association for Biological Education

3(1) Opinion

School technicians

4(2) Verification of Graham’s Law

A slight modification of the apparatus designed to measure the permeation rate of gases through a rubber membrane described in Bulletin 103 page 3,

5(3) Scaler/timer conversion

A conversion method to compensate for faulty decatron tubes that cannot me economically replaced.

10(8) Environmental thermometers

A review of devices available for environmental monitoring.

14(12) Address List

Bulletin 105 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Cost index, Surplus equipment ballot,  Overseas subscriptions

3(1) Surplus physics equipment

6(4) Redox prediction analogue

Use of redox potentials and prediction of direction of spontaneous reactions causes difficulty for some pupils. This analogue balance can offer some help in this situation.

9(7) Thorax bell-jar model

A recurring problem with this model is the perishing of the rubber sheet used to represent the diaphragm. We offer an alternative – material from an old inner tube.

12(10) In the Workshop

Making the redox prediction analogue referred to earlier.

14(12) Address List

Bulletin 106 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Future SSERC exhibitions/lectures,.

3(1) Opinion

Why accelerate?

5(3) Measuring oxygen production in photosynthesis

Using pondweed and dissolved oxygen meters.

8(6) Hazardous chemicals manual

Problems with some printing.

12(10) Freezing by evaporation – revisited.

We have been sent an alternative method.

12(10) In the Workshop

A trickle charger for alkaline cells

14(12) Address List

Bulletin 107 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Opinion

‘Fog indices’ and clear communication.

4(2) Natural gas burners

Reflections on ripples set off by the fire (Involving the Rhodes Flamefast model 702 burner) which was reported in Bulletin 97.

4(2) Energy conversion experiment

A correction needed to Integrated science worksheets

5(3) Human body resistance values

We investigate a seemingly dubious claim.

5(3) Surplus physics equipment

7(5) Scaler/timers conversion to a fully digital read-out conversion – again

Now we show how to convert the Panax scaler to digital display

11(9) Trade News

13(11) Bulletin Supplement

Stereo-microscope test report summaries

14(12) Address List

Bulletin 108 Complete

3(1) Introduction

Revised integrated science course equipment list,  Xmas/New Year closing dates,

3(1) Health and Safety Executive – pilot study of educational establishments.

Extracts from the report.

6(4) A pulse rate meter

At recent exhibitions we have held considerable interest has been shown in a pulse rate meter we have built.

7(5) Learning to use a microscope

Using a 35mm negative as subjects.

10(8) The hazards of heating liquids

How to do this safely.

12(10) Trade News

13(11) Bulletin Supplement  – summary of microscope test reports

14(12) Address list

Bulletin 109 Complete

The page numbers refer to the pages in the pdf. (The numbers in brackets are those given in the actual bulletin)

3(1) Introduction

Cost index, Holiday closing dates.

3(1) Gating unit for scaler/timers

We offer two versions.

6(4) Human body resistance values

Following on from Bulletin 107

6(4) Timers

Two designs of general purpose timer.

10(8) Display Laboratory

The latest additions

11(9) Forearm model

How to make a working models of the human forearm.

12(10) Test-tube racks

Very simple and stable test-tube racks can be made easily from Marley drain pipes.

13(11) Trade News

14(12) Address List