The most-liked TILs from the past 7 days
Marcus Webb
5 days ago
Today I Learned
Botanically, a berry is a fruit that develops from a single flower with one ovary. Bananas, kiwis, and even avocados qualify. Strawberries, raspberries, and blackberries do not — they're "aggregate fruits." Language is delightfully imprecise.
Today I Learned
Git bisect performs a binary search through your commit history to find the exact commit that introduced a bug. You mark commits as "good" or "bad" and Git narrows it down. Saved me hours of debugging today.
Aria Chen
4 days ago
Today I Learned
Richard Feynman's method: (1) Choose a concept, (2) Explain it as if teaching a child, (3) Identify gaps in your explanation, (4) Review and simplify. If you can't explain it simply, you don't understand it well enough. Changed how I study.
Priya Nair
2 days ago
Today I Learned
The :has() pseudo-class lets you select a parent element based on its children. For example, div:has(img) selects all divs containing an image. This was previously impossible in pure CSS and required JavaScript. Browser support is now excellent.
James Okafor
6 days ago
Today I Learned
TCP guarantees delivery and order (great for web, email, file transfer). UDP is faster but unreliable (great for video streaming, gaming, DNS). The trade-off is reliability vs speed. Most real-time applications use UDP and handle errors themselves.
Aria Chen
1 day ago
Today I Learned
Two hearts pump blood to the gills, while the third pumps it to the rest of the body. When an octopus swims, the heart that delivers blood to the body actually stops beating, which is why they prefer crawling — it's less exhausting!
Priya Nair
5 days ago
Today I Learned
Divide your frame into a 3×3 grid. Place your subject at one of the four intersection points rather than dead center. This creates more dynamic, visually interesting compositions. The human eye naturally gravitates to these power points.
Aria Chen
about 9 hours ago
Today I Learned
Archaeologists have found 3,000-year-old honey in Egyptian tombs that was still perfectly edible. Honey's low moisture content and acidic pH create an environment hostile to bacteria and microorganisms, making it essentially immortal.
James Okafor
3 days ago
Today I Learned
Einstein allegedly called compound interest the eighth wonder of the world. $1,000 invested at 7% annual return becomes $7,612 after 30 years — without adding a single dollar. Starting early matters exponentially more than the amount invested.
Sofia Reyes
6 days ago
Today I Learned
Cold water triggers the release of norepinephrine in the brain — a neurotransmitter that improves focus and mood. Even 30 seconds of cold water at the end of a shower can have measurable effects on energy levels throughout the day.
Marcus Webb
2 days ago
Today I Learned
Francesco Cirillo developed this time management method in the late 1980s using a tomato-shaped kitchen timer (pomodoro is Italian for tomato). The technique: 25 minutes of focused work, then a 5-minute break. Simple but remarkably effective.
Sofia Reyes
3 days ago
Today I Learned
Despite being only 2% of your body weight, the brain consumes roughly 20% of your total energy. It burns about 400 calories per day just to keep the lights on. This is why mental fatigue is real — thinking hard genuinely depletes energy.
