Changing Angles

Featured Post

Stooge 3-link truck: skating in never-never land

A fantasy steam-punk machine that looks kinda cool, if that’s your thing, until you realize it can’t possibly exist, because it violates the laws of nature and logic. Continue reading Stooge 3-link truck: skating in never-never land

Math 🔗

Ideal truck angles

How do we decide which angles our trucks should be wedged to? In a post addressed to beginners, I propose a process and explain the reasoning behind it. Continue reading Ideal truck angles

Wheelbase: the case for short decks

In this post, I want to make the case for a turn to shorter decks. First, I explain why long decks are redundant, then I enumerate the advantages of short-wheelbase decks and finally I attempt to answer exactly how short decks should/could become. Continue reading Wheelbase: the case for short decks

Pivot axis angles and wheelbase (open access)

Wheelbase and truck angles are directly related. I want to show that the three variables: front and rear angles and wheelbase are sufficient and necessary to determine the turning radius of a skateboard, when tilted a given amount. Continue reading Pivot axis angles and wheelbase (open access)

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Data 🔗

Curfboard: a closer look

Curfboard is a simple but ingenious design, which shows that innovation can still happen in an oligopolistic, stale market. It would be better though if Curfboard’s marketing steered clear of speciousness and didn’t thus undermine its own reliability. Continue reading Curfboard: a closer look

TKP trucks: history and quirks

The TKP template has been with us entirely unchanged for many decades, during which materials technology and consumer needs have evolved. However, some things that are characteristic about TKPs are not also essential. In this post I want to examine two ubiquitous but not defining characteristics of TKPs, which truck makers ought to reconsider. Continue reading TKP trucks: history and quirks

Major Arc: a couple of problems

Major Arc is marketing a design that isn’t, and never could be, geometrically consistent. In this article, I explain what makes the design unworkable. The real question is whether they already knew about this. Continue reading Major Arc: a couple of problems

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Sociology & Political Economy 🔗

The distance skating scene: a miniature market oligarchy

The distance skating scene is a small insulated social world that includes all the main spheres and dynamics one sees in an oligarchic market polity. Continue reading The distance skating scene: a miniature market oligarchy

The roots of LDP: distance sports or slalom?

Is LDP a kind of skateboarding, or does it belong under the distance skating umbrella? In this post, I make an effort to define this sport. Continue reading The roots of LDP: distance sports or slalom?

Ultraskate 2021 amidst a pandemic

In early 2021, while the covid-19 pandemic was still raging, and after many events had had to be canceled or postponed in the struggle against the spread of the disease, the IDSA decided to hold the Ultraskate event in Miami anyway. This decision can only be explained by weighing the interests involved against each other… Continue reading Ultraskate 2021 amidst a pandemic

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	Ⓐ on Misaligned pivot pins
	Fab on Misaligned pivot pins
	Ⓐ on Misaligned pivot pins
	Fab on Misaligned pivot pins
	Kaiyuan on Rear hanger width: does it mat…

Changing Angles

Skate blog on math and politics.

Featured Post

Stooge 3-link truck: skating in never-never land

Recent Posts 🔗

Skateboard geometry: balance line

GBomb’s Torsion Tails: a closer look

MelonenKacke: interview with Lena

Math 🔗

Ideal truck angles

Wheelbase: the case for short decks

Pivot axis angles and wheelbase (open access)

Data 🔗

Curfboard: a closer look

TKP trucks: history and quirks

Major Arc: a couple of problems

Sociology & Political Economy 🔗

The distance skating scene: a miniature market oligarchy

The roots of LDP: distance sports or slalom?

Ultraskate 2021 amidst a pandemic