papers

The SHELL: A Global Tool for Calling and Chaining Procedures in the System
Louis Pouzin
April 2, 1965

PDF document

The Mars Project 1948 to 1956
A. A. Jackson
Fifty Third Symposium of the International Academy of Astronautics,
October 21 – 25, 2019, Washington, DC , United States
Paper IAC-19-E4.2.03

Early Permian terrestrial apex predator regurgitalite indicates opportunistic feeding behaviour by Arnaud Rebillard, Andréas Jannel, Lorenzo Marchetti Mark J. MacDougall, Christopher Hamann, J.-Sébastien Steyer & Jörg Fröbisch

A fascinating paper in many ways!

Spider vision
Morehouse, Nathan
Current Biology, Volume 30, Issue 17, R975 - R980

This is a great article, and it only has 6 pages.

I read yet another paper about the Ordovician period:

The Great Ordovician Biodiversity Event (GOBE): definition, concept and duration by Thomas Servais and David A.T. Harper, Lethaia, vol 51, pp 151-164

There is a PDF of it.

What To Do When Nothing Has Happened?
Raymond “Randy” Freeman
Process Safety Progress September 2011 (Vol. 30 No. 5)

How should you estimate the probability of some catastrophic event that hasn’t happened yet?

Interesting paper:

Impact-induced initiation of a Snowball Earth: A model study
Minmin Fu, Dorian S. Abbot, Christian Koeberl, Alexey Fedorov
Science Advances, 10 eadk5489 (2024) 9 February 2024

The old Daily Coding Problem email list gave us this problem around 2020:

Daily Coding Problem: Problem #237 [Easy]

A tree is symmetric if its data and shape remain unchanged when it is reflected about the root node. The following tree is an example:

        4
      / | \
    3   5   3
  /           \
 9             9

Given a k-ary tree, determine whether it is symmetric.

This problem is less well described than I thought when I worked on it in 2020.

I read a paper, Oxygen and animal evolution: Did a rise of atmospheric oxygen trigger the origin of animals? by Daniel B. Mills and Donald E. Canfield, BioEssays, Volume 36 (12) - Dec 1, 2014

I can’t find a good, free, PDF of this one, mateys.

I read a paper by Aidan Lyon, Why are Normal Distribution Normal?, which is apparently properly cited as Brit. J. Phil. Sci. 65 (2014), 621-649