Highstronaught@feddit.uktoWorld News@lemmy.world•Boeing faces fresh safety questions after engine fire on flight from ScotlandEnglish
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2 months agoMetals are made of crystals, they usually defourm along the grain boundaries and fatigue cracks also grow along them. By eliminating those boundaries you reduce the chance for fatigue cracks and make the overall blade stronger.
I really hope in the next few years we see a revolution in short distance transport. Most journeys are less than 3 miles (if I remember correctly, could be 5) a perfect distance for e-bikes, e-scooters and normal acoustic bikes. Hopefully at least some places capitalise on it