Homonuclear molecule by Ciro Santilli 35 Updated +Created
Morse code by Ciro Santilli 35 Updated +Created
Cell type by Ciro Santilli 35 Updated +Created
Endosymbiont by Ciro Santilli 35 Updated +Created
Cantor's diagonal argument by Ciro Santilli 35 Updated +Created
Cancer is natural selection gone wrong by Ciro Santilli 35 Updated +Created
A cool thought about cancer expressed at Power, Sex, Suicide by Nick Lane (2006) is that cancer it is the direct product of natural selection gone wrong!
Cancer cells are obviously selected against anti-cancer mechanism, which when they manage to evade, they reproduce uncontrollably, gaining more and more momentum.
Sequence alignment by Ciro Santilli 35 Updated +Created
Sequence alignment is trying to match a DNA or amino acid sequence, even though the sequences might not be exactly the same, otherwise it would be a straight up string-search algorithm.
This is fundamental in bioinformatics for two reasons:
Expansion of the universe by Ciro Santilli 35 Updated +Created
Brownian motion by Ciro Santilli 35 Updated +Created
Small microscopic visible particles move randomly around in water.
If water were continuous, this shouldn't happen. Therefore this serves as one important evidence of atomic theory.
The amount it moves also quantitatively matches with the expected properties of water and the floating particles, was was settled in 1905 by Einstein at: investigations on the theory of the Brownian movement by Einstein (1905).
This suggestion that Brownian motion comes from the movement of atoms had been made much before Einstein however, and passed tortuous discussions. Subtle is the Lord by Abraham Pais (1982) page 93 explains it well. There had already been infinite discussion on possible causes of those movements besides atomic theory, and many ideas were rejected as incompatible with observations:
Further investigations eliminated such causes as temperature gradients, mechanical disturbances, capillary actions, irradiation of the liquid (as long as the resulting temperature increase can be neglected), and the presence of convection currents within the liquid.
The first suggestions of atomic theory were from the 1860s.
Tiny uniform plastic beads called "microbeads" are the preferred 2019 modern method of doing this: en.wikipedia.org/wiki/Microbead
Original well known observation in 1827 by Brown, with further experiments and interpretation in 1908 by Jean Baptiste Perrin. Possible precursor observation in 1785 by Jan Ingenhousz, not sure why he wasn't credited better.
Video 1.
Observing Brownian motion of micro beads by Forrest Charnock (2016)
Source.
Arsenide compound by Ciro Santilli 35 Updated +Created
Amateur telescope vendor by Ciro Santilli 35 Updated +Created
Cyrillic script by Ciro Santilli 35 Updated +Created
Satellite by Ciro Santilli 35 Updated +Created
Advertisement by Ciro Santilli 35 Updated +Created
Taboola by Ciro Santilli 35 Updated +Created
Taboola is a clickbait trained neural network. Which happens to have been written by Adolf Hitler.
Doctor of Philosophy by Ciro Santilli 35 Updated +Created
Judaism by Ciro Santilli 35 Updated +Created
The best YouTube channels by Ciro Santilli 35 Updated +Created
History of X-ray crystallography by Ciro Santilli 35 Updated +Created
How to use a single source multiple times in a Wikipedia article? by Ciro Santilli 35 Updated +Created
Definition, anywhere on article, likely ideally as the first usage:
<ref name="myname">{{cite web ...}}</ref>
And then you can use it later on as:
<ref name="myname" />
which automatically expands the exact same thing, or using the shortcut:
{{r|myname}}
To cite multiple pages of a book: en.wikipedia.org/wiki/Wikipedia:Citing_sources#Citing_multiple_pages_of_the_same_source, the best method is to define and use the reference without adding the p or location in cite as:
<ref name="googleStory">{{cite book |title=The Google Story}}</ref>{{rp|p=123}}
Do not set the page in cite, otherwise it shows up on the references. Instead we use the {{rp}} template. And then use the reference with the {{r}} template as:
{{r|googleStory|p=456}}
or for multiple pages:
{{r|googleStory|pp=123, 156-158}}

Unlisted articles are being shown, click here to show only listed articles.