Turing machine decider Updated 2025-07-16
Of course, because what we know about the halting problem, there cannot exist a single decider that decides all Turing machines.
E.g. The Busy Beaver Challenge has a set of deciders clearly published, which decide a large part of BB(5). Their proposed deciders are listed at: discuss.bbchallenge.org/c/deciders/5 and actually applied ones at: bbchallenge.org.
But there are deciders that can decide large classes of turing machines.
Many (all/most?) deciders are based on simulation of machines with arbitrary cutoff hyperparameters, e.g. the cutoff space/time of a Turing machine cycler decider.
The simplest and most obvious example is the Turing machine cycler decider
Discrete logarithm of the cyclic group Updated 2025-07-16
In this case, the problem becomes equivalent to reversing modular exponentiation.
This computational problem forms the basis for Diffie-Hellman key exchange, because modular exponentiation can be efficiently computed, but no known way exists to efficiently compute the reverse function.
Ruth Lawrence Updated 2026-08-21
en.wikipedia.org/wiki/Ruth_Lawrence
When Lawrence was five, her father gave up his job so that he could educate her at home.
www.dailymail.co.uk/femail/article-3713768/Haunting-lesson-today-s-TV-child-geniuses-Ruth-Lawrence-Britain-s-famous-prodigy-tracked-father-drove-heard-troubling-tale.html
he had tried it once before - with an older daughter, Sarah, one of three children he had by a previous marriage.That experiment ended after he separated from Sarah's increasingly concerned mother, Jutta. He soon found a woman more in tune with his radical ideas in his next spouse, Sylvia Greybourne
Arran Fernandez Updated 2025-07-16
Heavyside step function Updated 2025-07-16
Step response of the series RC circuit Updated 2025-07-16
Berkeley Software Distribution Updated 2025-07-16
System call Updated 2025-07-16
Svengali Updated 2025-07-16
Preprint Updated 2025-07-16
Waring-Goldbach problem Updated 2025-07-16
It is exactly what you'd expect from the name, Waring was watching Netflix with Goldbach, when they suddenly came up with this.
Superconductor resistivity experiment video Updated 2025-07-16
andor.oxinst.com/learning/view/article/measuring-resistance-of-a-superconducting-sample-with-a-dry-cryostat Not a video, but well done, by Oxford Instruments.
The Schrödinger equation is not relativistic Updated 2025-07-16
Series RC circuit Updated 2025-07-16
Step function Updated 2025-07-16
Hothousing Updated 2025-07-16
Person educated at home Updated 2025-07-16
Electrical impedance Updated 2025-07-16
Ciro Santilli distinctly remembers being taught that at basic electrical engineering school during Ciro Santilli's undergrad studies at the University of São Paulo.
It really allows you to do alternating current calculations much as you'd do DC calculations with resistors, quite poweful. It must have been all the rage in the 1950s.
Diploma Updated 2025-07-16
There are unlisted articles, also show them or only show them.