Bulletin 60 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 in schools, H.M.S.O. safety pamphlets, Regulations governing the disposal of poisonous waste

4(2) Opinion

Apparatus kits

6(4) Testing transistors

The teacher or technician faced with an unmarked transistor may learn a great deal about it by the intelligent use of an ohmmeter.

8(6) Gas analysis

In Bulletin 50 we published a suggested simplification of the technique for gas analysis. Here we offer some improvements.

10(8) Supply of Pharbitis nil

We have a supply of seeds on offer.

10(8) Sulphur trioxide preparation

Catalyst availability and a warning.

10(8) Trade News

11(9) In the Workshop – Respiration module

In bulletin 53 we published details of a module which can be used to detect carbon dioxide production by a wide range of organisms, from soil microbes to humans. We have sent a modified design which offers improvements.

12(10) Address List

13(11) Bulletin Index – Nos. 50 – 59

Bulletin 61 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

Scottish ASE conference, Future SSSERC exhibitions, S.E.D. circular on  carcinogens, We will investigate after sales service.

4(2) Opinion

Buying apparatus

5(3) Bicarbonate indicator

Problems with bicarbonate indicator and some solutions.

5(3) Trade New

8(6) In the Workshop – centre of gravity demonstration

A device which seems to catch the wonder of the school pupil morethan other similar centre of gravity “tricks”,

8(6) Perspex sheet bender

In Bulletin 13 we published a design for a perspex sheet bender, using resistance wire heated by a low voltage power supply. We offer some improvements.

11(9) Metronome

A metronome, based on the oscillating advertising sign often seen in shop windows.

14(12) Address List

Bulletin 62 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

VAT its introduction and implications for schools.

4(2) Opinion

ASEP (Australian Science Education Programme) systems

5(3) Air flow generator

In chemistry there are instances where it is necessary to push air over a substance in a combustion tube. We show one way of obtaining such an air flow.

5(3) Gas chromatograph

We describe a heating system for the Gallenkamp Junior Gas Chromatograph,

8(6) Laboratory accidents

Using molten potassium chlorate to produce oxygen, Heating magnesium powder instead of ribbon. (Suggested replacement of asbestos with rocksil), Charcoal blocks burning.

8(6) Anaerobic respiration

We describe methods for investigating this process.

10(8) Electro-mechanical flip flop

A flip flop using relays may seem something of an anachromism in these days of dual inline integrated circuit chips. However, there may be pupils, perhaps even some teachers, who feel more confident if they know what is taking place.

11(9) Oersted’s experiment

We take a new look at an old experiment, Oersted’s rotating wire.

12(10) Trade News

13(11) Bulletin Supplement – colorimeters

A summary of test reports on a selection of colorimeters;

14(12) Address list

Bulletin 63 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

Secondment of Colin Weatherley

3(1) Opinion

Caveat emptor – Use of Nuffield Combined Science in Iran

5(3) moments of inertia apparatus

The mathematics is taken out of the problem, and numeracy inserted, by providing a pair of similar objects with different dimensions and asking the student to predict which of the two will have the greater acceleration down. the incline

7(5) Force on a conductor apparatus

A top pan balance with a 10mg sensitivity can be used as a force-on-a-conductor balance,

7(5) Energy content of foods

Some simple methods for food calorimetry.

11(9) Producer gas preparation

A method for making ‘producer gas’ (fuel gas that is manufactured from material such as coal).

12(10) Trade News

14(12) Address List

Bulletin 64 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

Assistant Director of Biology (John Richardson), Assessing electronic calculators

4(2) Surplus physics equipment available.

5(3) Disposal of radioactive sources

The National Radiological Protection Board will accept for disposal any radioactive source.

6(4) Inductive reactance demonstration

An experiment which shows the ‘choking’ or inertial effect of inductance.

7(5) Filter pump use

Water use by filter pumps.

7(5) Food testing with ‘stix’ papers

We look at the effectiveness and suitability of various clinistix and albustix products.

11(9) CLEAPSE Reports

An updated list of CLEAPSE reports available to borrow.

12(10) Explosive gas mixtures

How to carry out gas explosions safely.

12(10) Storage of sulphur dioxide cylinders

Incorrect storage can lead to corrosion.

13(11) Pipette filler

In Bulletin 32 we described the construction of a pipette filler based on a disposable syringe. Since then we have found a simpler method of construction.

14(12) Address List

Bulletin 65 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

Iranian science – an update on the situation with Nuffield Combined Science.

4(2) On choosing a microscope

Advice on choosing suitable microscopes for pupil use.

9(7) Accident report

An accident which occurred during storage of a mixture of copper and sulphur powder.

10(8) In The Workshop – Spark ignition of fuels

Construction of Apparatus which can be used to show explosion of mixtures of air and petrol, town gas, natural gas, liquified petroleum gas (propane or butane) or a combustible powder such as lycopodium.

11(9) Smoke cell

An improved version of our design from Bulletin 4.

10(8) 4 mm plug leads

Connecting them for mechanical strength.

12(10) Connector block

A DIY connector block to simplify wiring.

13(11) Trade News

14(12) Address List

Bulletin 66 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

SSSERC microscope reports, Physics equipment list, Integrated science list

5(3) On choosing a microscope (Part 2)

The second part of the article on choosing a microscope, continuing from Bulletin 65

9(7) Bulletin Supplement – ‘H’ grade microscopes

A list of microscopes suitable for ‘H’ grade work in schools.

14(12) Address List

Bulletin 67 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

Annual subscription, Bulletin reprints, Surplus equiprnent in the Dundee area

4(2) Oxidation of ammonia

How to carry this out safely.

5(3) Surplus physics equipment

8(6) Faraday cage

Making a Faraday cage to show that there is no electric field inside a hollow conductor

9(7) In The Workshop – microscope eyepiece projector

A microscope eyepiece attachment which allows the image to be projected horizontally onto a screen,

9(7) Microscope viewing head

Following an idea supplied by a teacher of using a slide projector as a light source, we have constructed a cheap viewing head from a flower pot.

13(11) Trade News

14(12) Address List