san francisco New problems at the Millennium Tower worry yet another expert Jason Weisberger

Science Don't ask why, just watch a 3D printer making replicas of your favorite savory snacks Jennifer Sandlin

Engineering "The Balloon!!!!" How to take down a spy balloon in a controlled manner Gareth Branwyn

makers Maker creates electronic device that solders itself like "a self-cooking pizza" Lux Sparks-Pescovitz

Engineering US Army Corps of Engineers published a weird-cute calendar of cats and big infrastructure David Pescovitz

Engineering Elon Musk has absolutely no idea what he's doing Rob Beschizza

Engineering 3D circuit simulator Rob Beschizza

Engineering Video: Man builds beautiful machine to throw knives with incredible laser-guided accuracy David Pescovitz

Engineering How a 100-year-old NY theater is being lifted 30' straight up Jason Weisberger

gadgets Excellent interactive explanation of how mechanical watches work Rob Beschizza

Engineering How steel balls are made Rob Beschizza

Engineering Cybertruck arriving next year (like fully autonomous self-driving and the second coming of Christ) Rob Beschizza

mistakes Note for anyone stealing this guy's Porsche 914 Rob Beschizza

Engineering How aluminum cans are formed Rob Beschizza

howto Miniature gasoline engine Rob Beschizza

maps Structurally deficient bridges in Pittsburgh, mapped Rob Beschizza

Engineering How to convert a piano into a working bicycle BBQ Thom Dunn

mistakes Watch: Golden Gate Bridge "howling" during storm Rob Beschizza

Engineering 30ft remote control airplane has 50 engines Rob Beschizza

3d printing 3D-printed engine fan fails spectacularly Rob Beschizza