Mainz 2022 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 30: Outreach

HK 30.5: Vortrag

Dienstag, 29. März 2022, 17:15–17:30, HK-H7

Archimedes principle and Galileo’s free fall experiments — •Rainer Schicker for the ALICE collaboration — Phys. Inst., Im Neuenheimer Feld 226, 69120 Heidelberg

Archimedes of Syracuse formulated a principle (∼ 246 BC) according to which a body immersed in a fluid is subject to a buoyant force. The free fall of objects was studied by Galileo Galilei by dropping unequal masses from the Leaning Tower of Pisa (∼ 1590 AD). The synthesis of Archimedes Principle and Galileo’s free fall conclusions is feasible by measuring the fall of differently shaped objects in liquids of different densities. The interpretation of such measurements necessitates the understanding of physics concepts widely used and discussed in nuclear and particle physics, such as gravitational, inertial and in-medium mass.

A setup was designed and built which is capable of recording the falling time at multiple positions over a falling height of 90 cm. These measurements can be made in air as well as in liquids. The technical details of this setup are described, and first results will be presented and discussed.