The barrier to acids comes from oxidizing the surface, which anodizing does. But pores do not exist in bare aluminum, and hard anodize actually has the biggest pores! There is technically a sealer on the surface, but sticking it in hot water can sometimes release it, depending on what sealer was used. Here's an article with more info: https://www.lightmetalage.com/news/industry-news/surface-finishing/introduction-to-anodizing-aluminum/
ironeagl
joined 2 years ago
Turns out it's 1000 knots (~600m/s), or 18,000 feet. So it's the altitude in this case. But a slow-moving drone at <18,000ft is fine.
Maybe a misapplication then. I've run into it with model rocketry before (for good reason)
Great reference!
The GPS chips have internal limits on how fast they think they can move. If they determine that they are moving faster than 300m/s they will stop outputting any results for a period of time. This limit is, IIRC, put in at the silicon level, so only military chips can bypass it.
If you try to use mapping apps on a plane you sometimes run into this issue.
Anodized aluminum is porous, that's how the dye stays attached. Also aluminum is not recommended for use with acidic foods. I would personally avoid it.
I think you're thinking of the Amish.
And taking a step back and taking a moment to see how you feel about the options is pretty sound advice.
Ads have reached the level of "suboptimal viewing".
"World's richest 1%" is 81,000,000 people, FYI.
Can you give me an example? Calphalon for instance have "hard-anodized nonstick" but they're still teflon. Anodizing is actually how teflon is usually made - the anodizing makes a porous surface that the teflon can stick to. So you'right that the sealer is different, it's just teflon.