Chemistry
A Solid That Vanishes Without Melting: Sublimation
Sublimation is the process in which a solid turns directly into a gas without passing through the liquid state. This article covers the principle and conditions behind it, everyday
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Food & nutrition
Why Egg Whites Turn White and Firm: Protein Denaturation
Protein denaturation is the unraveling of a protein’s carefully folded three-dimensional structure by heat, acid, or physical force, while its amino acid sequence stays intact. Thi
Physics
The Secret Behind How Sunglasses Erase Glare: Polarization of Light
Polarization of light is the state in which light’s vibrations are lined up in one direction. This article covers how polarization works, including Malus’s law, the three ways ligh
Chemistry
Why Ice Forms Later: Freezing Point Depression
Freezing point depression is the lowering of a liquid’s freezing temperature when other substances are dissolved in it. We look at why dissolved particles slow ice formation, why t
Film & media
The Most Beautiful Light of the Day: Magic Hour
Magic hour is the short stretch just after sunrise or just before sunset when light turns red and soft. We look at why the light changes, a landmark example from film history, shoo
Food & nutrition
The Secret Behind Chewy Dough: Gluten
Gluten is a net-like mass of protein that forms when two wheat proteins meet water and become entangled. We look at how it forms, how flour types differ, the cooking tricks that st
Food & nutrition
The Science of Sugar Turning Brown: Caramelization
Caramelization is the reaction in which sugar, heated to high temperatures, breaks down and recombines into brown compounds and aroma molecules. We look at how it works, the temper
Chemistry
Light That Blooms Without a Flame: Chemiluminescence
Chemiluminescence is the phenomenon in which energy released by a chemical reaction comes out as light instead of heat. This piece covers how excited molecules produce this ‘cold l
Chemistry
Chemistry’s Bundle for Counting Atoms: Avogadro’s Number
Avogadro’s number is the number of particles in one mole of a substance, about 6.02 × 10²³. This piece explains what it means, ways to grasp its size, how Avogadro, Cannizzaro, Los
Food & nutrition
Why a Cut Apple Changes Color: Enzymatic Browning
Enzymatic browning is the reaction in which enzymes in fruits and vegetables use oxygen to oxidize phenolic compounds into brown pigments. This piece covers how polyphenol oxidase
Physics
The Real Reason the Sky Is Blue: Rayleigh Scattering
Rayleigh scattering, worked out by Lord Rayleigh in 1871, is the scattering of light by particles much smaller than its wavelength, such as air molecules, and it is far stronger fo
Food & nutrition
Water and Oil as One: Emulsion
An emulsion keeps immiscible liquids together as tiny droplets with the help of emulsifiers. From mayonnaise and milk to butter, this piece walks through O/W and W/O types, Bancrof