Category: Science
-
PSLE Science Reality Lab Vol No.344 | “Planet Equilibrium Temperature = 300 K” — Is the Surface Really 300 K?
PSLE Science Reality Lab: learn why an exoplanet equilibrium temperature is a model-derived radiative-balance estimate, not a thermometer reading of the planet’s surface or proof of habitability.
-
PSLE Science Reality Lab Vol No.343 | “Water Year 2026” — Did It Begin on 1 January 2026?
PSLE Science Reality Lab: learn why a USGS “Water Year 2026” runs from 1 October 2025 to 30 September 2026, and how to align time windows before comparing rainfall, streamflow or drought claims.
-
PSLE Science Reality Lab Vol No.342 | “NRR 30 dB” — Will Earplugs Always Make the Sound 30 dB Quieter?
PSLE Science Reality Lab: learn why a hearing protector marked NRR 30 dB carries a laboratory-derived noise-reduction rating rather than a promise that every wearer receives exactly 30 dB of attenuation.
-
PSLE Science Reality Lab Vol No.341 | “Water Resistant 10 Bar” — Does That Mean the Watch Is Safe for Any Activity at 100 m?
PSLE Science Reality Lab: learn why a 10 bar watch water-resistance marking is a defined product-test and use claim, not a universal promise for every activity at an imagined 100 m depth.
-
PSLE Science Reality Lab Vol No.340 | “Battery Charge Rate = 1C” — Does That Mean Exactly One Hour to Full Charge?
PSLE Science Reality Lab: learn how to read a battery C-rate as current normalised to rated capacity rather than a guaranteed wall-clock charging time, and why charge curves, limits and temperature matter.
-
PSLE Science Reality Lab Vol No.339 | “48 MP Camera” — Does It Capture Four Times More Real Detail Than a 12 MP Camera?
PSLE Science Reality Lab: learn why a 48-megapixel camera has four times the pixel count of a 12-megapixel output but does not automatically capture four times more real scene detail or four times better images.
