What changed
Recent corrections to articles on thethingwith.com after publication. The most recently corrected articles come first; full correction notes stay under each article.
6 recent corrections across 6 articles.
How Does an Induction Hob Heat the Pan but Not Your Hand?
Efficiency figures corrected to ENERGY STAR's (85% induction, 75-80% electric, 32% gas; 5-10% better than electric, 3x gas); the glass does get hot under a pan; eddy-current explanation and boiling-time example corrected; sources added.
Do Chargers Left Plugged In Waste Electricity?
Figures recomputed from the stated watts: five 0.3 W chargers are 1.5 W, about 1.1 kWh and 0.33 a month, not 3.6 W and 2.16; a charger wastes at most about 0.37 kWh a month; the unsupported 30% smart-plug saving was removed; sources added.
DIY Home Energy Audit: What to Check and What It Saves
A blower door is professional equipment, not a DIY tool; a plug-in meter reads watts and kWh, not dollars per hour; the unsourced 30% and 5-30% savings figures were replaced with ENERGY STAR figures (up to 10% from sealing and insulating, up to 20% from replacing a 10-year-old unit).
Headline was
A Comprehensive Guide to Conducting a DIY Home Energy AuditWhy Does a Microwave Heat Food Unevenly, and What Actually Fixes It?
Sources added for the heating mechanism, hot spots and standing time; the foil answer now follows FDA guidance, the hot-spot test was replaced (a cup of water cannot show hot spots), and lower power plus standing time were added as fixes.
Why Do LED Bulbs Flicker or Buzz, and Does It Matter?
Sources added; the claim that flicker raises energy bills was removed (an LED uses under 1 kWh a month), the lifetime example recomputed from a 15,000-hour rating, dimmer minimum-load figures added, and a note on flicker and health (IEEE 1789) added.
Why Are Homemade Ice Cubes Cloudy?
The cloudy core forms at the centre of a tray cube, not at its edges; distilled or boiled water on its own does not make tray ice clear; the method that works is directional freezing in a small open cooler, as documented in Camper English's ice experiments.