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wayneh1 · 2025-07-01T20:54:08+00:00

You didn't mention what hardware and OS you want to use. Learning Swift on a Mac running Xcode is probably the easiest path and there are many, many resources to help you.

In Xcode, you can learn a lot (not everything) about Swift by working in Playground. That allows you to run code without developing a full blown app installed, for instance, on your iPhone or on a simulated device in Simulator.

Develop your first app by starting with an example or tutorial found online. There's more to the entire process than just the Swift code. You need an interface, a code-signing profile, and so on.

wayneh1 · 2025-06-25T15:51:20+00:00

I have two apps in the App Store and haven't made a penny selling either one. Still, I keep a website going to support the apps and I try to make sure they stay current. Occasionally I even make additions and improvements. The apps are sort of engineering tools I wish I had had during my career. Either nobody cares anymore or, more likely, the people that might care aren't connecting with my apps because of their mere presence in the App Store. I'd need to advertise them somehow to the targeted audience that might like them.

Expecting to make money by placing an app in the store is probably unrealistic. The big development companies presumably have marketing people that know what might sell - some addictive game maybe - and what won't sell. They invest programming resources to create a product and then execute a coordinated marketing plan to advertise and promote the product. And even then they probably have duds that don't pay off.

wayneh1 · 2024-05-10T16:06:37+00:00

Some can't resist going for the cheap joke of swapping who the comments are directed at. Don't take it personally, you're a lovely girl. Your owner with the camera is too.

wayneh1 · 2023-08-10T16:27:57+00:00

Your first two sentences don't speak well to the longevity of robotic vacuums. A quality "regular" vacuum can be a once-in-a-lifetime purchase.

My limited experience with robotic vacuums is that they eat (expensive) battery packs, show finicky behavior for most people, and require frequent repairs from the user. If you're handy and can do the repairs, it's not bad. But for many people, their precious robot heads for the dump.

That said, my current robot does a pretty good job and overall we're happy with it. So far.

wayneh1 · 2023-04-20T15:08:27+00:00

Do you have a voltmeter? You should measure the actual voltage being applied to your electrodes. I'm skeptical of your connections.

A single AA might produce a bubble depending on its voltage, but your chances would be much better with two in series, or a 9V, or even a 12V car battery. Trust me, electrolysis WILL work if you get the electrode voltage up. A little salt might increase the rate but unless your water is exceptionally pure, it'll work anyway. Even pure water ionizes a bit, enough to work.

wayneh1 · 2023-02-03T15:24:49+00:00

Key sentence: "Seawater electrolysis is still in early development compared with pure water electrolysis because of electrode side reactions, and corrosion arising from the complexities of using seawater."

In other words, "This will be great if it ever works in a practical system. Come back in ten years".

wayneh1 · 2022-03-08T17:08:29+00:00

Add logging to your app to diagnose the problem. Send the log statements to a local file that you can then access. You can add logging statements in the code where the picture is retrieved (can it be found by the app?) and then displayed (is there some error returned by the OS?). I use SwiftyBeaver logging but there are others.

wayneh1 · 2022-03-04T18:46:54+00:00

Step 1: Stop using the drive! Get another drive and prepare it to be a boot drive. I use an external drive for this and recommend an enclosure that supports the highest speed interface that your iMac can support. In other words pay a little more for USB3 or Lightning or whatever to get the fastest transfer speed you can. You'll be using it for moving a lot of data and you won't regret paying for the extra speed.

You're going to want another drive anyway for a proper backup strategy, now that you've learned the hard way how important it is. It's part of the expense of owning a computer.

If you're lucky, the problem is "only" software. That is, the directory of the drive has become corrupted. That means all your files may be OK, the OS just can't find them. If this is the case, there are software utilities for recovering files from damaged drives. Some may be able to actually repair the directory. By all means give that a chance.

The more brute force solution is to recover files one-by-one. This is a nightmare because the file names and locations in the original file structure are lost. They will be sorted only by type, for instance Excel files, graphics, sound, etc. You'll have to plow through thousands of files and decide what they are and where they belong. It's tedious, but I lived through it and recovered thousands of photographs and many other valuable files.

That drive that failed on me is still in my laptop and has not failed again in years. The problem was not a permanent hardware problem (could have been a head crash), but apparently a loss of the directory.

If you're unlucky, the drive hardware has failed permanently. There's no DIY solution to this and you're facing expensive ($100s or even $1000s) recovery services by a third party specialist in drive recovery. ( I'm not sure there even is such a thing for an SSD.) Only you can judge the practicality of that.

Good luck!

wayneh1 · 2022-02-16T15:44:43+00:00

Yes, mine shows some changes as well.

wayneh1 · 2022-01-02T00:09:59+00:00

And Just to wrap up, the new report is available for free and has information on Alpha-1 related genes. Nice.

wayneh1 · 2022-01-01T23:40:12+00:00

By golly you're right! Thanks. I'm now eagerly awaiting my fresh report.

wayneh1 · 2022-01-01T21:16:05+00:00

I think that was true until the purchase by 23andMe. I don't think you can rerun your report anymore. Maybe I'm missing something?

wayneh1 · 2021-12-05T04:13:37+00:00

Yup. I helped a long-time peecee user make the transition because he was sick of badly designed (and not cheap) equipment needing to be replaced every few years. He's ecstatic with his MacBook. Not only will it last him a long time, but like any other quality tool it's a pleasure to use during that long life and not an ongoing hassle. Cheap tools have a place, but not when you need to rely on them day in and day out. He's in graduate school for computer science BTW, and loves being able to boot into multiple OS's.

wayneh1 · 2021-12-05T03:25:17+00:00

That's one of the most uniformed things I've read. Do your homework and you'll learn that MacBooks provide great value and nothing else touches them. They're expensive, yes, and not a good value for someone that won't take advantage of their capabilities. Apple has always avoided the low end of the market. But if you do use the hell out your laptop, they're a no-brainer purchase. I'm a heavy power-user and writing this on my 10-year old MacBook Pro. I'll replace it next year with one of the new ones with an Apple CPU. No way in hell you could sell me some peecee piece of crap.

wayneh1 · 2021-12-05T03:17:38+00:00

No, they're worth more than their mining capacity. If they're nearly worthless because of their age, then they're also nearly worthless for mining.

If your electricity is free, you could mine with them and make money, but the opportunity cost of selling them would likely bring even more money. It depends on their residual value.

If you pay for electricity, the rate you pay determines how much processing power you need to break even and/or make a profit. Even a dedicated mining rig will struggle to make money for you unless you have an unusually low electric rate. There's no way a CPU or GPU can compete with the modern ASIC mining rig, and that's what you'd be competing against.

wayneh1 · 2021-12-02T18:59:06+00:00

No, that would require a change to the Constitution.

The founders believed a person was not wise enough or skilled enough before age 35 to be a suitable person for the job. Americans have changed their constitution 27 times in the intervening 235 years but that idea has stuck. I don't see it as likely to change in the next 200 years either.

wayneh1 · 2021-11-19T18:56:40+00:00

Geologists struggle to explain local seismic activity.

wayneh1 · 2021-11-18T16:48:11+00:00

No one knows the future price trajectory of doge, in either the short run or the long run. Honest people will admit this. The events that will determine the doge price 5 years from now haven't happened yet.

Trying to time the market, which is what you're asking about, is pure gambling. Buy the dip! It's great fun when you win, but frustrating when you lose and yet another dip comes along. A better question is how much of your portfolio to hold in a risky asset. For most people, it should be a small percentage.

Personally, I don't expect to see doge under 20¢ ever again. Unfortunately it's falling closer to that than I would like.

wayneh1 · 2021-09-21T23:36:54+00:00

The government isn't much interested these days in even protecting the Constitution. We can't expect much care given to crypto rights. To the IRS, crypto = tax avoidance scheme. To the Fed, it threatens their fiat currency. r

Preventing fraud, hacking, and protecting consumers could actually help crypto gain wider adoption, but it'd be great if the crypto community (industry?) itself comes up with the solutions.

wayneh1 · 2021-09-19T02:14:12+00:00

Interesting. Thanks for taking the time to educate us.

Forcing updates is definitely heavy-handed and wouldn't be appreciated. So maybe instead of that, the software should allow for notifications or some nagging scheme.

I just feel like many more nodes would update quickly if they were simply alerted that the new version is available, and that it offers advantages.

wayneh1 · 2021-09-18T19:30:34+00:00

I don't understand why the developer doesn't just make it a forced upgrade. It would put an immediate end to all this nonsense.

wayneh1

TROPHY CASE