The Mystery of Rust

What is Rust? Rust isn’t just dirt; it’s a specific chemical reaction called oxidation. Rust is the common name for iron oxide (Fe₂O₃·nH₂O) Formation: It’s formed when iron (or alloys like steel that contain iron) reacts with oxygen in the presence...

Metabolism: Energy Game Plan

Metabolism Basics Metabolism is the set of chemical reactions that turn food into usable energy and the parts your body needs. Two sides: Catabolism breaks molecules to release energy; anabolism builds new molecules. ATP: Cells convert food energy into ATP, the...

Homeostasis: Keeping Balance Inside

How Homeostasis Works Your body stays steady by running feedback loops that detect and correct change. Set point: Target levels the body maintains (≈98.6°F, normal blood sugar). Sensors: Nerves/monitors detect changes—skin & blood temp, pancreatic glucose sensors....

Bite-size Bioactives

What Are Bioactives? Bioactives are naturally occurring compounds in food that can modulate body functions (inflammation, cell signals, immunity). They’re not vitamins but plant-made helper compounds that can support our health. Major groups with examples:...

Infrasound & Ultrasound

Infrasound Sound is a vibration that travels as a wave; infrasound is the extra-low part of the spectrum that we can’t hear. Infrasound is below 20 Hz, so we do not hear it, but we can sometimes feel it as a rumble. Why it travels far: Low frequencies have long...
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