How sourdough actually works
Wild yeast + lactobacillus from the air ferment the dough. KY humidity makes sourdough easier to start than in dry climates.
Microbiology
How turkeys see
Wild turkeys see UV light — to them, hunter blaze orange is dim, but blue stands out brightly. The reason turkey hunters wear camo + avoid blue tarps.
General knowledge / historical fact
How weather radar sees through trees
Doppler radar shoots a microwave beam that mostly passes through foliage but bounces off raindrops, hail, + bugs. The "signature" of rotation in a thunderstorm is what reveals tornadoes — even ones hidden in trees.
General knowledge / historical fact
Pawpaw is North America's largest native fruit
Asimina triloba grows wild in KY river bottoms. Largest edible fruit native to the continental U.S. Tastes like banana + mango.
USDA + KY State University ag research
The 11-year solar cycle
The Sun's magnetic activity peaks every ~11 years. At peak, more sunspots + auroras. Currently in Solar Cycle 25, expected peak 2024–2025.
General knowledge / historical fact
The blue moon misconception
A "blue moon" doesn't look blue — it's the second full moon in a calendar month. The phrase came from a misreading of the Maine Farmers' Almanac in 1946.
Sky & Telescope, 1999
Why a year has 365.25 days
Earth's orbit takes 365.2422 days. The 0.25 is corrected by leap years; the rest is the basis for our 400-year Gregorian rule.
Astronomical fact
Why blue jays are loud
Blue jays mimic hawk calls to scare other birds away from food sources. They also alert deer + other forest residents to predators. The neighborhood watch of the woods.
General knowledge / historical fact
Why coal in eastern KY but not western
Eastern KY coal is from ancient swamps during the Carboniferous period (~325M years ago). Western KY coal comes from a separate, slightly younger Pennsylvanian basin. The two beds aren\'t connected.
General knowledge / historical fact
Why corn silks are sticky
Each silk is connected to one potential corn kernel. Pollen lands on the silk + travels down to fertilize that exact kernel. A short silk = a kernel that didn't finish filling.
General knowledge / historical fact
Why deer rut in fall
Deer mate in October-November so fawns are born in May-June when forage is at peak. Photoperiod (shortening daylight) triggers the rut, not temperature.
General knowledge / historical fact
Why honey crystallizes
Honey is supersaturated sugar. Glucose precipitates as crystals when there's a seed (a pollen grain, a piece of dust). Warm the jar gently to redissolve. Crystallized honey is fine to eat.
General knowledge / historical fact
Why honey doesn't spoil
Honey is acidic, low-moisture, and bees add an enzyme that produces hydrogen peroxide. Edible jars have been found in Egyptian tombs.
Food chemistry
Why Ohio River flows north then west
Glaciers from the last ice age reshaped the river — at Louisville it makes a hard west turn because of a buried ridge of pre-glacial bedrock.
General knowledge / historical fact
Why the moon looks bigger near the horizon
The Moon Illusion. The moon is physically the same size whether near the horizon or overhead — our brain compares it to nearby objects, making it look larger. Photograph both and they\'re identical.
General knowledge / historical fact