Science
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Mathematical Instruments
A private collector's museum of drawing instruments, slide rules, sectors and mechanical calculators, with photos, histo…
Mathematically Correct Breakfast
George Hart shows, step by step with photos, how to slice a bagel so the two halves come out as interlocking rings, plus…
Mathematics in the Library of Babel
An essay by mathematician Daniel Litt that uses Borges's Library of Babel to reflect on mathematics, what could be found…
Mathematics Keyboard Online
A virtual keyboard for typing mathematics and physics symbols and equations directly in the browser, with nothing to ins…
Mathigon
An award-winning interactive mathematics platform with explorable textbooks, the Polypad virtual manipulatives playgroun…
Mathispower4u
A large library of free math video lessons that walks through topics from basic arithmetic up through algebra, calculus,…
MathPages
A dense, decades-old archive of essays working through recreational and research-level math problems, from number theory…
Mathspp
A blog of articles about Python, programming, and mathematics, with deep dives into language features, practical tips, a…
MathURLs
A math news aggregator that gathers posts from popular mathematics websites in one place, handy for a quick scan of what…
Matrices and Graphs
A clear illustrated explainer of how every matrix is secretly a graph and vice versa, and why this fact makes so much of…
Matrix Calculator
An online matrix calculator that handles addition, multiplication, inversion, determinants, rank, and LU decomposition,…
Matrix Calculus
Type a matrix or vector expression and this free online tool computes its derivative symbolically, showing the result in…
Matrix Multiplication
An interactive matrix multiplication calculator and visualizer built for learning, showing how each row and column combi…
Matt Keeter
Personal site of engineer Matt Keeter, with write-ups of graphics, hardware and software projects, odd experiments and s…
Matt Shlian
Intricate folded paper sculptures and paper engineering that play with light, tessellation and geometry, plus videos of…
MatterChart
An interactive periodic table and element explorer that shows each element's properties, visualizations, and composition…
Matthen
A blog of mathematically explainable animations and illusions, with looping visuals that illustrate ideas from maths and…
Maurilia Station
A long-running blog by a sound flaneur and composer, with dispatches on field recording, resonance, acoustic ecology and…
Maurycy's Blog
A personal corner of the web with astrophotography catalogs, hardware tinkering and quirky project write-ups, hand-made…
Max Slater
A blog on computer graphics, programming, and math by Max Slater, with long-form posts that explain technical ideas thro…
Maxima on WebAssembly
A full Maxima computer algebra system running in your browser: solve equations, differentiate, integrate and plot functi…
Maya Lin Studio
The studio of Maya Lin, designer of the Vietnam Veterans Memorial, presents her land art, architecture and memorial work…
Mayerle's International Test Chart, 1907
The National Library of Medicine shows a lavish 1907 multilingual eye-test chart, with letters in several scripts and pi…
Mayo Clinic - Mayo Clinic
Nonprofit medical center site with authoritative articles on diseases, conditions, symptoms, tests, and treatments.
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