How old were you when you found out that iPhone has a built-in feature that can reduce motion sickness while you’re a passenger in a car? How it works:

Rivet Removal Drill Attachment Quickly and cleanly drills out the heads of rivets from metal profiles or sheets, leaving a neat hole with minimal damage to the surrounding material.

How to spot an AI-generated face (according to science) The 6 signs AI faces give away: • More symmetrical • More proportional • More attractive • Less expressive • Less distinctive • Less memorable AI gravitates toward the statistical average, a little too balanced, too generic, too “perfect.” Real faces have the small asymmetries and quirks that make them human and memorable. Source: Scientific American

Life tip: Just because you get an opportunity to further your career doesn't mean it's always the right move.

Natural gas is odorless, gas companies are required by federal law to add a chemical called mercaptan to give it a distinctive rotten egg or sulfur smell to help detect leaks.

- William Shakespeare

Life tip: keep your (fake) smile a few seconds longer at the end of a zoom/teams call.

What do you call this in your language?

DIY extractor

The first flying car, the Convair Model 118, was made in the 1940s.

If room-temperature superconductors became real and practical, what would be the biggest impact? ⚡ Zero-loss power grids 🏥 Affordable MRI for all hospitals 🚆 Maglev transport everywhere 💻 Orders-of-magnitude faster computers

Most hospital MRI machines (especially the standard 1.5T and 3T ones) use superconducting magnets cooled with liquid helium to about −269°C. The field is typically 1.5–3 Tesla, roughly 30,000–60,000 times Earth’s magnetic field. Without superconductivity, building practical high-field whole-body MRI systems would require so much copper (and power) that they’d be impractically massive and energy-hungry.

Superconductivity: zero electrical resistance below a critical temperature. In a normal conductor, electrons collide with atoms and lose energy as heat. In a superconductor below its critical temperature, electrons pair up (Cooper pairs) and move through the lattice without scattering. Result: current flows forever with no energy loss. First discovered in mercury at −269°C in 1911 (Heike Kamerlingh Onnes, Nobel Prize 1913). High-temperature superconductors were found in 1986, critical temperature −135°C. Still cold, but far more practical. Room-temperature superconductivity: still the holy grail. Every claimed discovery so far has failed to be reproduced. If we find one that works, it changes: • Power grids (zero loss over distance) • MRI machines (lighter, cheaper) • Maglev trains • Quantum computers

Japanese scientists built a superconducting surface with steps just one atom high. Those steps act as rails for quantum vortices, the magnetic flux tubes that form inside superconductors under a magnetic field. Normally, vortices move randomly through the material and cause resistance. That's the enemy of superconducting electronics. On this surface: vortices moved 1,000× more easily along the atomic steps than across them. The effect works between 0.10 and 0.20 Tesla. At the lowest temperatures, the vortices tunnel quantum-mechanically along the rails. Change the temperature or magnetic field – you tune the direction. One atom high. One thousand times better. Japan National Institute for Materials Science (NIMS). Physical Review B, Oct 16 2026.

Space fact: The Martian day is 24 hours 39 minutes and 35 seconds long.

Wolseley-Vickers wheel-cum-track car, 1926.

A handheld electric air conditioning (HVAC) pipe wrapping / tape winding machine. It is a cordless tool used by HVAC technicians to quickly and evenly spiral-wrap protective material (such as insulation tape, foam banding, cable ties, or UV/weather-resistant wrap) around refrigerant line sets.

The ‘H’ in ENGINEER stands for happiness.

Reversible snap ring (circlip) pliers. This tool is used to expand or compress retaining rings (snap rings / circlips) so you can easily install or remove them from grooves on shafts or inside bores. The reverse function lets you quickly switch the jaw direction for both internal and external rings without changing tools.

Life tip: If you break glass on your floor, turn off the lights and turn on a flashlight, holding it so the beam is cast parallel to the floor. The light from the flashlight beam will make the broken glass easier to see.

Hydrogen vs batteries for transport. Which wins? 🔋 Batteries: + Simpler system + High efficiency (>90%) − Long charge time − Heavy at scale 💧 Hydrogen fuel cells: + Fast refuelling (3 min) + Light for long range − Energy lost in production and storage − Infrastructure doesn't exist For cars: batteries are winning. For ships, planes, and heavy trucks: hydrogen might be the only option. The real debate isn't which is better. It's: which application are we talking about? What's your take? Reply 👇