All analysis done on public (?) Strava data.
https://www.nytimes.com/interactive/2019/12/13/upshot/nike-vaporfly-next-percent-shoe-estimates.html
Microwave Oven Diagnostics with Indian Snack Food | Evil Mad Scientist Laboratories
December 14, 2019https://www.evilmadscientist.com/2011/microwave-oven-diagnostics-with-indian-snack-food/
QT:{{”
As an area of the cracker cooks, it bubbles up in just a few seconds, leaving clear marks as to where there is microwave power and where there isn’t. For this particular microwave, Saturn-shaped objects will cook evenly.
Obviously what is happening is that there are two hotspots in this microwave: one in the center, and one offset from center which traces out a circle thanks to the rotating plate in the bottom.
We have access to four other microwave ovens. Are they all this bad?For each microwave, we spread out four appalams on a plate and cooked them for 30 seconds.
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can also observe w/ melted cheese
Microwave Ovens
December 14, 2019https://edisontechcenter.org/Microwaves.html
QT:{{”
The microwave oven uses a magnetron to generate microwave energy. The microwave energy travels through a waveguide and is distributed into a metal cavity where the food is cooked. The waves are absorbed by the food and excite water molecules in the food. This heat then transfers throughout the food cooking it.
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Caltech mathematics professor dies – San Bernardino Sun
December 14, 2019https://www.sbsun.com/2009/11/21/caltech-mathematics-professor-dies/
QT:{{”
Fuller came to Caltech as a research fellow in 1952 and stayed on as a professor. His work focused on “writhing numbers,” a way of
mathematically describing supercoiled double-stranded DNA helices. “}}
The Beatles, the Nobel Prize, and CT scanning of the chest. – PubMed – NCBI
December 14, 2019https://www.ncbi.nlm.nih.gov/pubmed/19995626
QT:{{”
From its first test scan on a mouse, in 1967, to current medical practice, the CT scanner has become a core imaging tool in thoracic diagnosis. Initially financed by money from Beatles’ record sales, the first patient scan was performed in 1971. Only 8 years later, a Nobel Prize in Physics and Medicine was awarded to Hounsfield and Cormack for their discovery.
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Allan MacLeod Cormack – Wikipedia
December 14, 2019https://en.wikipedia.org/wiki/Allan_MacLeod_Cormack
QT:{{”
Allan MacLeod Cormack (February 23, 1924 – May 7, 1998) was a South African American physicist who won the 1979 Nobel Prize in Physiology or Medicine (along with Godfrey Hounsfield) for his work on X-ray computed tomography (CT).[1]
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Godfrey Hounsfield – Wikipedia
December 14, 2019https://en.wikipedia.org/wiki/Godfrey_Hounsfield
QT:{{”
Sir Godfrey Newbold Hounsfield CBE FRS[1] (28 August 1919 – 12 August 2004)[2][3][4][5][6] was an English electrical engineer who shared the 1979 Nobel Prize for Physiology or Medicine with Allan McLeod Cormack for his part in developing the diagnostic technique of X-ray computed tomography (CT).[7][8][9][10][11]
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Wave Equation – YouTube
December 14, 2019https://www.youtube.com/watch?v=Jw_aGOrTDPo
sine waves naturally solve the wave eqn.
Wave equation – Wikipedia
December 14, 2019https://en.wikipedia.org/wiki/Wave_equation
QT:{{”
Introduction
The wave equation is a partial differential equation that may constrain some scalar function u = u (x1, x2, …, xn; t) of a time variable t and one or more spatial variables x1, x2, … xn. The quantity u may be, for example, the pressure in a liquid or gas, or the displacement, along some specific direction, of the particles of a vibrating solid away from their resting positions. The equation is
{\displaystyle {\frac {\partial ^{2}u}{\partial
t^{2}}}\;=\;c^{2}\left({\frac {\partial ^{2}u}{\partial
x_{1}^{2}}}+{\frac {\partial ^{2}u}{\partial x_{2}^{2}}}+\cdots +{\frac {\partial ^{2}u}{\partial x_{n}^{2}}}\right)}{\displaystyle {\frac {\partial ^{2}u}{\partial t^{2}}}\;=\;c^{2}\left({\frac {\partial ^{2}u}{\partial x_{1}^{2}}}+{\frac {\partial ^{2}u}{\partial x_{2}^{2}}}+\cdots +{\frac {\partial ^{2}u}{\partial
x_{n}^{2}}}\right)}
where c is a fixed non-negative real coefficient.
Using the notations of Newtonian mechanics and vector calculus, the wave equation can be written more compactly as
{\displaystyle {\ddot {u}}=c^{2}\nabla ^{2}u}{\displaystyle {\ddot {u}}=c^{2}\nabla ^{2}u}
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