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Candidates are drawn at random from curated Wikipedia categories, then scored with this model. Nothing is hand-picked and no metric is invented: every input is Wikipedia metadata.

Technical relevance25%: Technical vocabulary in the title, description, categories and intro.
Article quality20%: WikiProject assessment class and article length.
Conceptual depth20%: Density of formal concepts (theorems, models, algorithms) and curiosity cues.
Obscurity15%: Low 30-day pageviews, discounted when article quality is weak.
Topic diversity10%: Distance from topics already shown in this batch.
Exploration relevance10%: Strength of the link to the current topic or article.

Rejected outright: disambiguation pages, lists, stubs under 6k bytes, biographies, entertainment, sports, places and organisations. Pageviews cover the last 14 days.

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The internet’s deepest rabbit holes

A live, ranked stream of obscure and technically deep Wikipedia articles, sampled from computer science, mathematics, physics, engineering, biology and economics. Open one, and follow its links as far down as you like.

Topic:

Engineering:

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Extended Wulff constructions

Engineering › Materials science

Shapes for crystals with interfaces and twins

Extended Wulff constructions refers to a number of different ways to model the structure of nanoparticles as well as larger mineral crystals.

27 min readGA-class38 views in 14 days

Rabbit hole

Robotic arm

Engineering › Robotics

Type of mechanical arm with similar functions to a human arm

A robotic arm is a type of mechanical arm, usually programmable, with similar functions to a human arm; the arm may be the sum total of the mechanism or may be part of a more complex robot.

13 min read718 views in 14 days

Rabbit hole

Routh–Hurwitz stability criterion

Engineering › Electrical engineering

Mathematical test in control system theory

In control theory and the theory of differential equations, the Routh–Hurwitz stability criterion is a mathematical test that is a necessary and sufficient condition for the stability of a linear time-invariant (LTI) dynamical system or control system.

8 min read1.6k views in 14 days

Rabbit hole

Artificial intelligence

Engineering › Control theory

Intelligence in machines

Artificial intelligence (AI) is the capability of computational systems to perform tasks typically associated with human intelligence, such as learning, reasoning, problem-solving, perception, and decision-making.

123 min readB-class196k views in 14 days

Rabbit hole

Virtual fixture

Engineering › Robotics

Overlay of augmented sensory information upon a user's perception of a real environment

A virtual fixture is an overlay of augmented sensory information upon a user's perception of a real environment in order to improve human performance in both direct and remotely manipulated tasks. Developed in the early 1990s by Louis Rosenberg at the U.S.

11 min read50 views in 14 days

Rabbit hole

Internal model (motor control)

Engineering › Control theory

Process in control theory

In the subject area of control theory, an internal model is a process that simulates the response of the system in order to estimate the outcome of a system disturbance. The internal model principle was first articulated in 1976 by B. A. Francis and W. M.

5 min read150 views in 14 days

Rabbit hole

PLECS

Engineering › Electrical engineering

Simulation software for electrical circuits

PLECS (Piecewise Linear Electrical Circuit Simulation) is a software tool for system-level simulations of electrical circuits developed by Plexim. It is especially designed for power electronics but can be used for any electrical network.

4 min read103 views in 14 days

Rabbit hole

Time-Sensitive Networking

Engineering › Control theory

Set of standards under development by the IEEE for real-time networking

Time-Sensitive Networking (TSN) is a set of standards under development by the Time-Sensitive Networking task group of the IEEE 802.1 working group. The TSN task group was formed in November 2012 by renaming the existing Audio Video Bridging Task Group and continuing its work.

31 min read802 views in 14 days

Rabbit hole

Aerial manned-unmanned teaming

Engineering › Robotics

Collaboration of autonomous and human systems

Aerial manned-unmanned teaming is the collaborative operation of manned and unmanned aircraft systems, typically in military contexts.

31 min read966 views in 14 days

Rabbit hole

Hann function

Engineering › Electrical engineering

Mathematical function used in signal processing

The Hann function is named after the Austrian meteorologist Julius von Hann. It is a window function used to perform Hann smoothing or hanning. The function, with length L and amplitude 1/L, is given by: w0(x)≜{1L(12+12cos⁡(2πxL))=1Lcos2(πxL),|x|≤L/20,|x|>L/2}.

7 min readB-class1.3k views in 14 days

Rabbit hole

Law of symmetry (crystallography)

Engineering › Materials science

Crystallographic law

The law of symmetry is a law in the field of crystallography concerning crystal structure. The law states that all crystals of the same substance possess the same elements of symmetry. The law is also named the law of constancy of symmetry, Haüy's law or the third law of crystallography.

10 min read36 views in 14 days

Rabbit hole

Transmon

Engineering › Materials science

Superconducting qubit implementation

In quantum computing, and more specifically in superconducting quantum computing, a transmon is a type of superconducting charge qubit designed to have reduced sensitivity to charge noise. The transmon was developed by Jens Koch, Terri M.

8 min read771 views in 14 days

Rabbit hole

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