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Day 27: Disc Golf Numbers, Part 2

A few days ago we covered the first two of the four mysterious numbers that are on each disc: Speed and Glide. Today we’ll cover the other two: Turn and Fade.

Turn is the ability of a disc to turn toward the direction of its rotation during the initial high-speed part of its flight. That’s a mouthful! But what does it mean?

Let’s assume that you throw the disc with your right arm, and use the common backhand delivery. When you throw it, the disc will be spinning clockwise when viewed from above, and the front edge is spinning toward your right side. That’s why we say that the “direction of its rotation” is to your right.

Turn values range from 1 to -5, where 1 is the most resistant to turn, and a -5 will turn the most. Having some Turn is good for beginners, as it tends to offset the Fade at the end of the flight, making a more or less straight throw. One problem, though, is that high Turn discs are not as stable when throwing into the wind, so in general you should avoid high Turn discs in that situation.

Let’s compare the flights of two discs that have nearly the same numbers, but differ significantly in their Turn:

The disc on the left, the Thunderbird, has a Turn of 0. Note how its initial flight is fairly straight, while the disc on the right, the Roadrunner, bends to the right for the first half of the flight. That is consistent with a Turn value of -4 for the Roadrunner. I own a Roadrunner, and I can testify that it is very hard to control when throwing into the wind.

The fourth and final number to understand is Fade. Fade represents the tendency of the disc to turn away from its direction of rotation at the end of its flight as it slows down. In other words, Turn and Fade move the disc in opposite directions.

Fade values range from 0 to 5, with 0 finishing the straightest, and 5 bending hard at the end of the flight. It might seem odd to want your disc to fade, but it can be helpful for distance control, where you want to ensure that the disc doesn’t keep sailing past your target. It’s also very useful for when you need to shape your shot around an obstacle such as a tree, as you can throw to the side of the tree, and let the disc’s natural fade bring it back towards the target.

We’ve covered what the numbers on your discs mean. So, as a beginner, how do you use that information? First and most importantly, avoid buying high Speed discs. Until you develop your technique and strength, you simply won’t be able to throw them reliably. Start with a lower-speed disc, such as a fairway driver.

Next: practice! Find an open space where you can practice without having your mistakes (you will make plenty!) cause any problems. Not too far from my house is a park that has a baseball field without any outfield fence:

I’ve circled two trees that I measured to be 240 ft. apart. This is perfect, as I can rarely throw more than 250 ft. I take my discs, noting the numbers on them, and imagine how I need to throw them to get close to the target tree. I have to also factor in the wind, if any. When I make a good throw, I then observe how the disc’s flight goes, and whether it matches what I was expecting. I gather my discs, and now throw from the other tree back towards the first. This way I can practice both throwing with headwinds and tailwinds, or sidewinds coming from each side. I repeat this several times with a set of 3 discs, and then when I have a good feel for them, try with a different set of discs. It’s really helped me understand what disc works best in different conditions. Now I just need to improve my consistency, which means: more practice!

Day 26: June2020.org

I was planning on finishing the post about disc golf today, but I started watching the live stream of The Poor People’s Campaign: A National Call for Moral Revival, and felt as though there were more important things to write about.

If you haven’t heard of this movement, please take a few minutes to go to june2020.org, and read up on it. And if at all possible, please donate what you can to help.

I watched the live stream for over an hour, and am more convinced than ever that we cannot improve our country by looking at one issue and focusing on that. Instead, it is an over-arching, systemic issue that has not arisen by accident. It is by conscious design. It needs to be addressed as a system: things such as poverty, mass incarceration, abandoned veterans, gerrymandering, unending war, etc., are not individual issues, but all symptoms of the same evil design of the society.

I chose the word “evil” to describe it, as I can think of nothing that better exemplifies what evil means. Imagine not caring about what happens to some people, as long as you profit from it. Imagine not caring about millions of people living in poverty so you can have more. Imagine not caring about people escaping violence and persecution and denying them help just so you can keep your race’s percentage of the population from diminishing even further. Imagine not caring about democracy so that you can prevent people from voting who might not want to sustain the status quo. Anyone as cold an uncaring as that, who would willfully cause millions upon millions to suffer, is the epitome of evil.

Please go to june2020.org and help in any way you can. Then continue to speak out against this unjust society, and vote for people who will at least keep it from getting worse until we can nurture a new generation of leaders who can lead us to where we need to go.

Day 25: Disc Golf Numbers, Part 1

When you start playing disc golf, you have to select the discs you will be using. One disc manufacturer, Innova, came up with a rating system for the flight characteristics of their discs, and it proved useful enough that all manufacturers have adopted it.

Stamped on every disc is a set of numbers that look like this:

Each of these numbers represents a different characteristic of the expected flight for that disc. They are, in order, Speed, Glide, Turn, and Fade.

Speed represents how hard the disc needs to be thrown in order to achieve its ideal flight. It ranges from 1 to 14. The higher the speed, the harder you need to throw the disc. In an earlier post I wrote about my difficulties getting one of my disks to fly, and that was because I wasn’t able to throw it hard enough, as I’m just a beginner. It takes time to build the strength and refine your technique in order to achieve the high speed throws that such a disc requires. The disc I was using had a speed of 12, and I wasn’t even close to being able to throw that hard.

High speed discs are drivers; i.e., when you need your throw to go a long way. More distance on a tee shot is almost always good, but you don’t want to lose accuracy, especially on a tight course. My home course is typical South Texas scrub, which includes a lot of cactus, so you don’t want to end up there! Below is where I ended up in one of my early rounds – another foot or two and it would have been painful to retrieve!

Ouch!

Speaking of distance, the second number in the ratings is Glide. This describes the disc’s ability to remain in flight, and ranges from 1 to 7. A disc spins when thrown, providing a gyroscopic effect, and also has a wing-like shape, which provides lift. Those two together determine how long a disc’s flight will last until it starts to drop. This is why the Speed is important: a harder throw will provide more lift and more gyroscopic stability, and the disc’s design is optimized to take advantage of that. For beginners, who can’t throw at such high Speeds, the driver discs are designed to Glide further by maximizing loft at lower speeds. For a beginner, the trick is to find a driver that flies the furthest that you can control. That generally means finding the highest Glide number for the highest speed you can reliably throw.

That’s enough for one post. I’ll continue tomorrow with explanations on the second two numbers, Turn and Fade.

Day 24: An Open Mind

I pride myself on always keeping an open mind. I like to think of myself as free of prejudice, and always looking for the good in others. I’m sure many of you do, too. It’s tough to see your blindspots sometimes, though.

I was born and raised in the New York city area. I lived for nearly all of my first 40 years either in or within a few minute’s drive from the city proper. So when I moved to Texas in 2008, I was a bit afraid – after all, how is a New York-style liberal elite atheist ever going to fit in there?

I was in San Antonio for all of 2 days before I had my first encounter. I was at a gas station filling up my car (a Civic Hybrid with NY state license plates) when a typical Texas pickup truck pulls up to the pump behind me. The driver’s door opens, and out steps a large man in full cowboy regalia: cowboy boots (of course), jeans, big-ass belt buckle, plaid shirt. He looked like this guy except he didn’t have a cowboy hat on – but I’m sure it was in his truck’s cab:

man wearing green plaid shirt, jeans, tan boots, belt and cowboy hat.

“OK”, I thought nervously, “I’m about to get my first ass-kicking!”. I could see him looking at me and my car with a serious expression on his face. After a little while he calls out to me “Hey – you from New York?”. If you know what a Texas accent sounds like, be sure to read his words with that accent, because he sounded just like that.

Given that my car had NY plates, I answered that yes, I was from New York. He then asks “What brings you around these parts?”. I got a little more nervous, expecting to be met with some sort of “we don’t like your type around here!” aggression. I replied to him that I had gotten a job here in San Antonio, and had just arrived in town.

He then breaks out in a big smile, and says “Well, welcome to Texas!”.

I thanked him, but immediately felt terrible. I had looked at this man, seen his appearance, and assumed that he was some backwards, hate-filled redneck who was looking for any excuse to kick my ass. Instead, he was a very friendly and warm person. I wasn’t as open-minded as I had imagined I was. I had let a stereotype control my perceptions of another person.

I think of this event a lot these days, especially with the news of white people calling the cops on black people because they “didn’t look like they belonged there”. We all have these stereotypes, and need to be mindful of them to keep our irrational reactions in check. Getting rid of those stereotypes is a process, and we all have work to do.

Recognizing that we all are not perfect in no way excuses acting on those perceptions as if they were fact. I do hope that the Karens of the world eventually see themselves and their biases and become a little more aware that some people just look different than you do, and that’s OK. I do admit to being skeptical of this change happening anytime soon, though. Attitudes sometimes take a generation or more to change, and the systemic racism in this country is very deep-rooted. It may take longer.

Day 23: Master

The tech world is reconsidering its use of the term “master”, as it has an association with slavery. Several years ago debate began about renaming the Master/Slave database replication design with something that did not conjure those horrible images from our past. Suggestions like Main/Secondary, or Primary/Replica have gotten traction, and several products have switched to these less offensive terms.

Last week GitHub announced that they working on replacing the name “master” in its service with a more neutral term, such as “main”.

Similar efforts are underway to replace the use of “whitelist/blacklist” with color-neutral terms such as “acceptlist/denylist”. All of this is being done in response to the increased awareness of the systemic racism that underlies so much of our society.

There has been some backlash, of course. While it was difficult to deny the obvious connection with “master/slave” to racism, some people are objecting to these latest proposed changes as being empty gestures. After all, the term “master” for a git branch doesn’t have a corresponding “slave” branch; it simply signifies the main/primary branch for development. Likewise for “blacklist/whitelist” – the term “blacklist” has its origin in 1639 England. “Whitelist” was coined later as the opposite of blacklist. Neither of these choices for color names had anything to do with racial notions of one race being better than another.

They also make the slippery slope argument: if we remove the master branch in git, will we have to also rename the master bedroom in our houses, or re-issue Masters degrees with a new name, or change our padlocks to some brand other than Master?

The thing about these objections is that they ignore the bigger picture: while those terms may have arisen perfectly innocently, they currently raise feelings of racial discrimination. And if you’re white like me, it’s not your call. Listen to what people of color are saying. If they say that it bothers them, that should be sufficient to make that change.

Changing these names to something neutral is not that big a deal*, but fighting those changes shows a real insensitivity to the feelings of others. “It doesn’t bother me; why should it bother you?” is a way of telling others that you really don’t care about them. Why wouldn’t you want to do these very small things in order to demonstrate a bit of empathy?

*git branch -m master main – was that so hard?

Another example along these lines is the word niggardly. It has absolutely nothing to do with race; it simply means “cheap” or “in short supply”. But why use a word that is so close to such an offensive term (you thought of that word when you read “niggardly”, didn’t you?) when there are so many perfectly good synonyms that avoid that association.

Choosing to use terms when you are conscious of its negative association, and have perfectly acceptable alternatives, seems unnecessarily provocative. Of course this won’t “solve” racism, but it is a very tiny step in the right direction.