Smartbolts have little discs in their heads that change color as the right amount of tension is applied to them. I recently installed a child safety gate with a similar mechanism: a red, spongy washer between the bolt and the frame; once the right amount of tension was on the bolt, the washer was squished down so much it disappeared and you could stop tightening.
Unfortunately, a torque-wrench does not measure bolt tension accurately, usually only about +/- 30%, because it does not take friction into account. The friction depends on bolt, nut, washer-material, plating, surface smoothness, machining accuracy, degree of lubrication and the number of times a bolt has been tightened. Fastener manufacturers often provide information for determining torque requirements for tightening various bolts, accounting for friction and other effects. However, in field applications, this information is often not available, practical or administered poorly.
The new Ikea Catalog is making a big bet on very small living spaces — the kind of place that costs more than half your monthly salary but is too small for a dinner-table, let alone a separate room for your kids, who are supposed to sleep in a bunk-bed in the living room (“Why […]
8Bitdo’s prototype Desktop Arcade Joy Stick is a) an entire retrogame cabinet, complete with controls, display and guts, b) excellently crafted from wood, c) a surprisingly beautiful re-contextualizing of the experience of play. I’d like to own an entire arcadeful of these, in sizes ranging from 6 inches to 6 feet tall, in a colossal […]
Zippo went a bit crazy with its lighter colors, introducing a rainbow of material-science wonders that, alas, I have no more use for, being a 15-year ex-smoker with the muscle-memory of an entire repertoire of obsolete Zippo tricks.
The Lytro Illum is our all-time best-selling camera and here’s our best deal yet. Apply the code “Lytro10” to save an extra 10% off on this camera’s mind-blowing functionality in this exclusive one day only sale.
If you’re looking to earn a top salary in the tech industry, there’s no better career than coding. However, sometimes the hardest part of entering this career path is knowing where to begin.We took the Complete Web Developer Course because it took that decision out of our hands. This course teaches beginner-friendly coding languages that will also help land an immediate […]
To be a Pokémon master, you’ll need a phone that won’t constantly die on you. Because nothing is worse than seeing the screen go black right as you’ve finally found the Charizard of your dreams.That’s why we’re so excited about the LinearFlux PokeCharger Portable Battery ($39.99). With its 3.0 Amp HyperCharging technology, this slim battery will […]