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Lincoln, Don – Physics Teacher, 2021
The theory of the Big Bang is accepted nearly universally among the scientific community. However, there is a small cadre of individuals who dispute this consensus and they point to a handful of datums that don't fit into the picture. One such datum is the existence of a star with an age reported to be older than the cosmos itself. This star is…
Descriptors: Astronomy, Science Instruction, Science History, Theories
Lincoln, Don – Physics Teacher, 2021
The history of particle physics can be considered nothing less than a huge triumph for science. Over the course of a little more than a century of effort, our understanding of the world of atomic and subatomic physics went from a vague understanding of atoms, to one that is much more detailed. Early in this hundred-year-long period, we learned…
Descriptors: Physics, Science History, Laboratory Equipment, Science Laboratories
Lincoln, Don – Physics Teacher, 2019
In the modern and exciting world of particle physics, in which scientists talk of Higgs bosons and supersymmetry, it would be natural for someone to dismiss the common proton as a particle too pedestrian to be interesting. Yet in the centennial year of the announcement of its discovery, studies of the humble nucleus of the hydrogen atom continue…
Descriptors: Nuclear Physics, Scientific Concepts, Science History, Measurement
Lincoln, Don – Physics Teacher, 2016
Winston Churchill once said of Russia that it was a riddle wrapped in mystery inside an enigma. Were the British Bulldog a physicist, he might have been talking of something other than our Slavic comrades. He might have been talking about an electron. This article covers the more modern representations of the electron. A brief reminder of the…
Descriptors: Science Instruction, Physics, Scientific Concepts, Chemistry
Lincoln, Don; Stuver, Amber – Physics Teacher, 2016
In a deep and dark corner of space, a cataclysm loomed. Two cosmic nemeses circled one another, locked in a macabre dance of death. Unfolding over millennia, the deadly waltz began leisurely enough. But with the dance came radiation and the energy loss that it implies. Orbit after orbit, the distance between the two protagonists shrank as their…
Descriptors: Science Instruction, Physics, Scientific Concepts, Scientific Principles
Lincoln, Don – Physics Teacher, 2013
They say that there is no such thing as a stupid question. In a pedagogically pure sense, that's probably true. But some questions do seem to flirt dangerously close to being really quite ridiculous. One such question might well be, "How many dimensions of space are there?" I mean, it's pretty obvious that there are three:…
Descriptors: Scientific Concepts, Physics, Science History
Lincoln, Don; Nord, Brian – Physics Teacher, 2014
As is true of a far more famous story, it all began a long time ago, in a galaxy far, far away. It even involved a binary star system. A small star, called a white dwarf, had become a burned out husk of its former self and it turned to gorging on hydrogen and helium from its bloated red giant neighbor. The transferred gas reignited the fires of…
Descriptors: Science Instruction, Physics, Scientific Concepts, Astronomy