Bill Rider

How do you prefer to initiate sex? Here's a guide to identifying your sexual initiation style that I put together for the @Astroglide blog. astroglide.com/blog/whats-you…

How long have humans been making porn? And, historically, how and why was porn often used for political purposes? Let's explore the fascinating history of pornography and kinks. sexandpsychology.com/blog/podcast/e…

Classic Windows XP wallpapers — which one did you have? v/TJ Kelly

Hancock's predictor-corrector scheme was never published by Hancock. It was described by other researchers in their paper in 1982. Later, in 1996, I learned and programmed it in a CFD course in the University of Michigan taught by Prof. Bram van Leer.

The review process can be useful for improving the value of a paper, and young researchers probably need journal papers to build their careers. What sometimes makes me hesitate is mainly that journals no longer accept submissions of enhanced conference papers. If I write too much in a conference paper, it becomes difficult to publish it in a journal later. So, for each conference paper, I decide whether I want to publish the work in a journal or not. If I decide to go for a journal, I avoid writing too many details or presenting it at all. But sometime, it's difficult to withdraw a conference paper; and in that case, I'll write every detail and do not publish the work in a journal.

Here's the paper: "Accurate Piecewise Linear Continuous Approximations to One-Dimensional Curves: Error Estimates and Algorithms", January, 1998, researchgate.net/publication/26…

It reminds me of this unpublished paper, which I wrote in 1998 as a graduate student at the University of Michigan. I posted its PDF on my website, and 20 years later, some researchers found and used it in an unexpected way, citing it as “unpublished.”

@HiroNishikawa Should all be on my new site

@DoGreatScience I've realized your blog old blog articles are not available any more at wjrider.wordpress.com... I liked your article "Stumbling Into Mediocrity" (April 12, 2025). Is it available anywhere?

All the good technical work in the world amounts to nothing if the leaders above it have no integrity or commitment to excellence. I spent a career learning that lesson the hard way. Here's where my thinking is now. bill-rider.com/2026/03/20/mus… #NationalLabs #Leadership #Science #AI

Popular media claims that we must love ourselves before we can love a partner, but is it true? Research finds that having more self-acceptance & engaging in more self-care predict higher levels of the 3 components of love: passion, intimacy, & commitment. link.springer.com/article/10.100…

I plan to present the derivations of all the high-order formulas I have derived so far in the upcoming summer conference paper. It will include complete details, and so there will be no journal version of this paper.

I know peer-reviewed journal papers are valued more highly than conference papers and may be required for promotion. But as I get older, I've also realized that it is much more important to generate and share useful ideas with a wider audience in a timely manner. Useful algorithms are useful whether published in peer-reviewed journals or not.

"A good programmer is someone who always looks both ways before crossing a one-way street." — Doug Linder

Is there a "secret sauce" driving the development of AI models? FutureTech researchers at MIT CSAIL found that at the frontier, sheer scale drives LLM performance, but proprietary techniques & algorithmic advances matter more away from it: bit.ly/4l76v2g

Why do some women fake orgasm? Common reasons include conflict avoidance, to impress a partner or feel desirable, and to end sex when an actual orgasm isn't possible or the sex isn't meeting their needs. sexandpsychology.com/blog/2026/3/18…

For the Euler/NS equations in 3D, a 4th-order accurate finite-volume method for unstructured grids would require to store in each cell 5 solution variables, 5x3=15 gradient components, 5x6=30 second derivatives, and 5x10=50 third derivatives, resulting in the total of 100 quantities per cell. It is often considered as too many.

This is Sutherland's law for the viscosity and its derivative with respect to the temperature in the form I usually implement in my CFD codes.

Every year the directors of the three NNSA labs sign a letter to the President certifying the stockpile is safe & reliable. Here's the question nobody asks: what would happen if one of them refused to sign? bill-rider.com/2026/03/18/we-… #NationalLabs #NuclearWeapons #NationalSecurity

Pooled results from 37 studies finds that, on average, women in relationships report higher sexual satisfaction than men. The difference held even when controlling for overall relationship satisfaction as well as their partner's sexual satisfaction. psychologytoday.com/za/blog/attrac…

If one partner orgasms in every sexual encounter but only orgasms once each time, while the other only orgasms half of the time but has at least two orgasms on each occasion, do they balance each other out? What does it mean to have orgasmic equity? sexandpsychology.com/blog/podcast/e…