"...unique tracking label for every card in the deck"
I'd like more details on how this was accomplished on a practical level. Got me thinking about how to embed trackers thin enough to go into a playing card that would operate like a mesh network then the deck could self report once it's properly randomized making a green light go off indicating play may begin.
They didn’t do this practically, the “tracking label” is just an analogy to convey what they did mathematically. The word “barcode” is also only used because it might be more accessible to the layperson than “bit sequence”.
This is just the authors explanation to explain how to encode where a card ends up. The cards don't actually have barcodes, they have a binary-encoded number where a 0 indicates the left pile and 1 indicates the right pile during a specific round of the shuffle. The number encodes the journey that card makes during the shuffle. It's not an actual barcode.
There are actually "marked" decks you can buy that come with an iphone app that tell you exactly where every card on the deck is by looking at the side.
Marked decks are an ancient tradition for both cheaters and magicians. There are also ways to mark a deck that aren't obvious to most people with a casual inspection and that don't need an app to read from the edge.
You might be surprised at how close they sometimes get, at a glance. For close up magic it has to be readable at a quick glance (without an app). For some of the cheating it has to "not even be a glance" because you can't get caught looking at the side of a deck.
To be fair, sure most of those marking strategies are approximations designed for a specific trick or a specific gambling game and so don't always need to be 100% of the state information (suit and rank of every individual card). But there are certainly close up magic reasons to have a deck you can find exact cards by marks. Though also to be fair, many (but not all) of those do move the marks to the back of the card with the assumption that you can at least spread the backs of the cards.
Knobs shouldn't be hard to use - hold down the knob that needs the adjustment and then drag in either of two directions to set the value. Maybe have a pop-up over the knob that displays the value as it's in use.
Thanks! For me, this works well for knobs that don't require frequent adjustments. Currently, my knobs have little pills next to them that switch a knob to a "precision mode." It is a little quicker, but you may need to remember to disable this mode next time you use the knob.
I also played with the idea of letting users slide their finger off a knob (tap and slide away from the center). This allows for moving the finger over a longer circumference, hence enabling a great degree of precision. The problems with this approach are that it takes longer to operate such knobs, you need to communicate to the user what the max allowable distance from the knob is, it can interfere with scrolling, and it doesn't work for knobs close to the edge of the screen. (Your idea works well for knobs at the edges.)
And this is just knobs! There are many other components, interactions between them, as well as associated accessibility challenges, haptics, etc. Instead of reinventing the wheel, I was hoping that human factors people had developed relevant guidelines, but perhaps it simply is not a prevalent enough problem.
Loopy Pro has a cool convention that I haven't seen elsewhere for this. Drag up or down to change the knob value. While doing that, drag left or right to zoom in. That makes the up/down movement more precise.
I will look into it! Is this for mobile or desktop? I would like to see how they introduce this interaction pattern and what feedback they provide as you interact with the knob.
It's an ios app. IMO it's really good. I own exactly one apple product, and it's an iPad that only runs Loopy Pro.
Here's a section from the manual that loosely explains the concept[1]:
> Adjust a slider or dial’s value by dragging up and down, or left and right for horizontal sliders. For finer control, move your finger away from the dial.
The only other music or audio app I use with any regularity is Reaper on Windows. I tend to do more performance-oriented stuff, and I try to keep everything outside the computer as much as practical. I don't use any software synths. I like the constraints and UX of dialing patches into my one keyboard/drum machine. I record some, but mainly I like to play in real time and not fiddle with VSTs and plugins.
anyone curious how employee ownership can work for large tech enterprises, a good starting point can be the material made available through the Beyster Institute - https://rady.ucsd.edu/why/centers/beyster/index.html
The founder built an $8 Billion dollar employee owned company, SAIC - and then allowed it to be carved up once he left having failed to ensure the culture of employee ownership was rooted as firmly with the board of directors as it was with the rank and file employees. I worked there for 12 years and saw firsthand the slide away from the ownership model, and it was instructive for me in my early career years.
glycyrrhizic acid in licorice can drop your blood potassium level and cause cardiac arrhythmia, however, as well as commonly raising blood pressure [1]
Hmmm, whoever makes this should also infuse it with carbs so they can also make CHO mouth rinsing claims. Helps to have more than one gimmick in a product.
Wow! What fun reading this niche interest. The Pilot FriXion sounds fun, for spycraft, or to recreate the Acme disappearing reappearing ink from who framed Roger rabbit.
"If you accidentally make your writing disappear, you may be able to get it to reappear by placing the paper in a freezer that reaches below 14°F (-10°C)."
I'd like more details on how this was accomplished on a practical level. Got me thinking about how to embed trackers thin enough to go into a playing card that would operate like a mesh network then the deck could self report once it's properly randomized making a green light go off indicating play may begin.