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By PASCO scientific.

Publisher: PASCO scientific.

This source is credited to an organization.

Online text: cdn.pasco.com/product_document/Charge-Equipotential-and-Field-Mapper-Manual-ES-9060.pdf

By PASCO scientific.

Publisher: PASCO scientific.

This source is credited to an organization.

Online text: cdn.pasco.com/product_document/Field-Mapper-Kit-PK-9023-Manual.pdf

Manufacturer laboratory manual. Webpage publication date unestablished.

By PASCO scientific.

Publisher: PASCO scientific.

Online text: cdn.pasco.com/product_document/Ideal-Gas-Law-Apparatus-Manual-TD-8596A_1_.pdf

Cited passages: Printed pp. 2–4: Introduction, Equipment Setup and Experiment 1 procedure; Printed pp. 4–5: Constant Temperature and Varying Temperature analyses; p. 8: answers 1–3.

Instrument manual and experiment guide issued and hosted by PASCO scientific, manual 012-04695D. The cover title is Thermal Radiation System: Instruction Manual and Experiment Guide for Model TD-8553/8554A/8555. No personal author is credited.

Cover revision: March 1999 (03/99). Copyright 1988 is a separate date; no first publication date is established.

Official manual: cdn.pasco.com/product_document/Thermal-Radiation-System-Manual-TD-8553.pdf

Cited passages: cover: model numbers, institutional issuer, revision 03/99 and copyright 1988; printed p. 1, Radiation Sensor: thermopile, millivoltmeter, shutter, reference heating and positioning; printed p. 3, Stefan-Boltzmann Lamp: approximate point source; printed pp. 9–10, Experiment 2, Fig. 2.1 and procedure: alignment, lamp-off ambient readings, lamp-on readings and heat-shield control; printed p. 11, Experiment 2 calculations: inverse squared distance comparison.