Articles

One tesla equals 10,000 gauss. Learn what both units measure, how to convert them, and how Earth’s field compares with an MRI scanner.

How CSS units relate: 1 inch = 96 px = 72 pt, em follows the parent font size and rem the root. See the chart, the math and when to use each unit.

Find your Chinese zodiac animal and element from your birth year, see why the year starts at Lunar New Year, and when January or February births need a check.

Find your time-lapse interval by dividing the event time by clip length times frame rate. Worked examples, frames, card space and shutter tips.

A flash guide number equals distance times f-number at ISO 100. Learn to find flash range, scale it for ISO, and read zoom and falloff.

Estimate yarn from finished size and yarn weight, add a safe margin, convert yards to meters, and read grams per skein on the label.

How much of your startup does a SAFE take? Learn the post-money cap formula, stacked SAFEs, cap vs discount pricing, and Series A dilution.

Vertical speed is height change over time. Learn meters per hour, feet per minute, the 3-degree descent formula, and the FAA 3 to 1 descent rule.

Viscosity is a fluid’s resistance to flow. Learn Pa s, poise and centipoise, how kinematic viscosity divides by density, and why heat thins liquids.

Unit price is price divided by quantity. Learn how to compare packages in the same unit, spot size traps, and see when bulk buying stops saving.