STEM Hub journal
Science, explained
from first principles.
Documented articles that connect equations to physical meaning, careful units, worked examples, and the limits of each model.
Equivalent Resistance: Why Series and Parallel Circuits Behave Differently
Derive the equivalent-resistance equations from current and voltage, then use physical checks to catch circuit mistakes.
Read articleMolarity and Dilution: Tracking Solute Through a Solution
Understand what molarity measures, why dilution conserves solute, and how unit discipline prevents common errors.
Read articleFrom Wavelength to Photon Energy: Reading the Electromagnetic Spectrum
Connect wavelength, frequency, and photon energy using exact constants and dimensional reasoning.
Read articleThe Ideal Gas Law: Units, Rearrangements, and Where the Model Breaks
Use PV = nRT consistently, understand its molecular assumptions, and recognize non-ideal conditions.
Read articleCalculator Precision: Significant Figures, Rounding, and Floating-Point Reality
Separate measurement precision from machine precision and report calculator results honestly.
Read article