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Two US high school girls rewrite 2,000 years of mathematics with a new Pythagorean proof once thought untouchable

For centuries, the Pythagorean Theorem has occupied a unique position in mathematics: both elementary and profound. Its ...

Fluid gears rotate without teeth, offering new mechanical flexibility

A team of New York University scientists has created a gear mechanism that relies on fluids to generate rotation. The ...
SciELO

Isaac Newton’s early documents on circular motion: can the dynamic reasoning in the “Principia” be found in them?

Some historians claim that Isaac Newton had already formulated the categories in the Principia twenty years earlier. This is based on two extant documents (1664–1665 and 1669). Derek Whiteside claims ...
IEEE

Inverse Multiquadric Radial Basis Functions in Eigenvalue Analysis of a Circular Waveguide Using Radial Point Interpolation Method

Abstract: Meshless time domain methods allow flexible distribution of nodes in the computational domain. The radial point interpolation method (RPIM) in electromagnetics with Gaussian radial basis ...
IEEE

Arithmetic Optimization Algorithm Based on Cauchy Mutation Trigonometric Function Search to Solve Combined Economic Emission Dispatch Problem

Abstract: Nowadays, problems such as greenhouse effect and air pollution become increasingly prominent. The power generation process should pay attention to the fuel cost and reduce the pollution to ...