Discharge rake (spikes made of copper/ iron/ zinc/ brass) — Teylers Museum

Discharge rake (spikes made of copper/ iron/ zinc/ brass)

circa 1850 - 1874

What influence has the kind of metal used upon the spark discharge of an electrically charged object? That question can simply be answered by this discharge rake, consisting of four spikes of copper, iron, zinc and brass respectively. Because of the difference in electric conductivity of the metals, a spark will be generated earlier at the copper spike than, for example, at the iron spike. The beautifully blown, glass handle serves as insulator.

Administration name

Fysisch Kabinet

Title

Discharge rake (spikes made of copper/ iron/ zinc/ brass)

Translated title

Discharge rake (spikes made of copper/ iron/ zinc/ brass)

Dating

[{'start': '1850', 'end_precision': 'circa', 'end': '1874', 'start_precision': 'circa'}]

Measurements

[{'notes': u'', 'part': 'geheel', 'type': u'', 'value': '460', 'unit': u''}, {'notes': u'', 'part': 'handvat', 'type': u'', 'value': '340', 'unit': u''}, {'notes': u'', 'part': 'punten', 'type': u'', 'value': '89', 'unit': u''}]

Object number

FK 0526

Reproduction reference

[{'reference': '..\\images\\Fysisch\\Gekoppelde afbeeldingen\\FK 0526.jpg'}]