Math & physics fan sharing simple, beautiful ideas—based on what I’ve learned from writing books. Clarity first, always. ✨
Joined April 2025
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📘 Galois' Group Theory
Explore the ideas behind Galois' remarkable insights into equations and symmetry. Discover the mathematical thinking that helped shape modern algebra.
amazon.com/dp/B0DWXVS5VZ
#Math #GaloisTheory
The black dots on side AB divide it into five equal segments.
Triangles ABC, CDF, and CEG are equilateral.
The area of triangle ABC is 5.
#mathpuzzle #Geometry #GeometricProblem
October 24, 1804 — Wilhelm Eduard Weber was born.
A pioneer of electromagnetism, he co-invented the first electromagnetic telegraph with Gauss. The SI unit of magnetic flux, the weber, was later named in his honor for his foundational work. ⚡📡
#OnThisDay #Physics #Weber
ABC and ADE are equilateral triangles.
Given that BD = 2 and CD = 4, find CF.
#mathpuzzle #Geometry #GeometricProblem
October 23, 1908 — Ilya Frank was born.
He shared the 1958 Nobel Prize in Physics for explaining Cherenkov radiation—light emitted when charged particles move faster than light in a medium. His work advanced high-energy physics. ⚡💡
#OnThisDay #Physics #Cherenkov
October 23, 1905 — Felix Bloch was born.
He unveiled how electrons move in crystals, laying the foundation of solid-state physics. 🧭💎
Nobel laureate and co-creator of NMR, his work echoes in today's MRI technology.
#OnThisDay #Physics #Bloch
October 22, 1881 — Clinton Davisson was born.
He shared the 1937 Nobel Prize in Physics for showing electron diffraction, confirming matter's wave nature. His work laid the foundation for quantum mechanics and modern electron microscopy. ⚛️🔬
#OnThisDay #Physics #Davisson
As shown in the figure, OAB is a sector with a central angle of 150° and a radius of 4.
The region bounded by chord AB and arc AB is folded along line BC.
If ∠ABC = 20°, find the area of the shaded region.
#mathpuzzle #Geometry #GeometricProblem
October 20, 1891 — James Chadwick was born.
He discovered the neutron in 1932, unveiling the missing piece of the atomic nucleus and transforming nuclear physics. His work paved the way for both nuclear energy and modern particle science. ⚛️✨
#OnThisDay #Physics #Chadwick
October 19, 1910 — Subrahmanyan Chandrasekhar was born.
He unveiled the limits of stellar stability—the Chandrasekhar limit—showing how massive stars collapse into white dwarfs or beyond. A pioneer who illuminated the life and death of stars.🌟
#OnThisDay #Physics #Chandrasekhar
Triangle ABD is equilateral with side length 7.
AE = CD = 3, BC = DE = 5.
Find BE.
#mathpuzzle #Geometry #GeometricProblem
October 17, 1888 — Paul Bernays was born.
A key figure in mathematical logic, he collaborated with Hilbert to build the foundations of mathematics and co-developed the Hilbert–Bernays system, shaping modern formalism. ✦📘
#OnThisDay #Mathematics #Logic
October 16, 1918 — Abraham Nemeth was born.
A blind mathematician and creator of the Nemeth Braille Code for Mathematics, he opened the world of math and science to many visually impaired learners. 📘
#OnThisDay #Mathematics #Accessibility
Triangle ABC is a right isosceles triangle.
AE = AF, ∠BDE = 22.5°．
Find the values of [Red]/[Green].
#mathpuzzle #Geometry #GeometricProblem
October 15, 1608 — Evangelista Torricelli was born.
By inventing the mercury barometer, he proved that air has weight and pressure—foundations of atmospheric science and fluid dynamics. 🌡️📏
#OnThisDay #Physics #Torricelli
ABCD is a rectangle.
BE and AF are perpendicular, and AF=EF.
If DF=2, find the area of quadrilateral ADEF.
#mathpuzzle #Geometry #GeometricProblem
ABCD and AEFG are squares, each with area 10.
Find the area of the shaded region.
#mathpuzzle #Geometry #GeometricProblem
