Quantum Levitation and Superconductors
Tom Kuntzleman | Thu, 06/03/2021 - 13:21
Some explorations and explanations regarding superconductors and the quantum levitation (also known as quantum locking) experiment.
magnetic properties
Marvelous Interactions between Metallic Money and Magnets
Tom Kuntzleman | Wed, 09/04/2019 - 20:00
This post describes some simple experiments using various coins and neodymium magnets that connect to the 2019 National Chemistry Week theme of Marvelous Metals!
Collection of and Experiments with Liquid Air
Tom Kuntzleman | Tue, 05/15/2018 - 20:18
Simple methods to prepare liquid air are described. In addition, ways to test the properties of liquid air and other liquefied gases are explored.
Investigations of Pyrite Nugget Beads: An Experiment for National Chemistry Week, Part 2
Tom Kuntzleman | Fri, 10/13/2017 - 17:17
Decorative beads are tested for the presence of iron pyrite, or FeS2, in an activity well-suited for the National Chemistry Week theme of "Chemistry Rocks!"
Investigations of Hematite Beads: An Experiment for National Chemistry Week
Tom Kuntzleman | Sun, 10/01/2017 - 19:32
I have been in the lab conducting tests on the chemical and physical properties of various geological samples. In my investigations I’ve found that hematite is a particular mineral that is easy to acquire and quite amenable to experimentation.
Ferrimagnetism - Part 1 of 2 - Hematite and Magnetite
Hematite and magnetite are formed from iron(II) and iron(III) solutions.
Ferrimagnetism - Part 2 of 2 - Testing for Magnetism
Hematite and magnetite samples are tested for magnetism.
Paramagnetism: Oxidation States of Manganese - Potassium Permanganate
Potassium permanganate is diamagnetic and is not attracted to a magnet.
Paramagnetism: Nitrogen and Oxygen - Background
The apparatus for testing the paramagnetism of liquid nitrogen and liquid oxygen is shown.
Curie Point of Nickel
The magnetic properties of nickel change when it is heated above its Curie point.