Einstein Probe detects X-ray flare from a nearby star, report says
TL;DR The Einstein Probe registered an X-ray flare originating from a nearby star, according to the report. The published source…
Round and Round: A Logic Puzzle About Circling, Perspective, and Definitions
TL;DR A short dialogue from Yakov Perelman's 1927 book describes a man who walks around a circular glade while a…
Round the tree, yes, but not round the squirrel — a Perelman paradox
TL;DR A short anecdote from Yakov Perelman's 1927 collection recounts a man who circles a glade trying to glimpse a…
Your Real Biological Clock: Mortality Shapes When People Become Parents
TL;DR Tom Scocca argues that the real limiter on when we have children is mortality, not just fertility: delaying parenthood…
Your Real Biological Clock Is You’re Going to Die — reflections on time and parenting
TL;DR An essay reframes the 'biological clock' as a reminder of mortality rather than fertility alone, using personal family stories…
MIT OCW: Street-Fighting Mathematics — Course Readings and Textbook (2008)
TL;DR MIT OpenCourseWare hosts the readings for the January IAP 2008 offering of 18.098, Street-Fighting Mathematics. The course page lists…
Autism diagnoses rose as criteria broadened, not due to higher severe prevalence
TL;DR An analysis of CDC ADDM data from 2000–2016 found the increase in autism diagnoses was concentrated among children with…
A tour of the 15 most famous transcendental numbers and their stories
TL;DR Cliff Pickover assembled a list of 15 well-known transcendental (and conjectured-transcendental) numbers and explained historical proofs and curiosities around…
Resistance training load does not determine hypertrophy: journal comment
TL;DR An item titled "Resistance training load does not determine hypertrophy" appears on the Physiological Society/Wiley site with DOI 10.1113/JP289684…