M,n,k game Updated 2025-07-16
Newton dot notation Updated 2025-07-16
Order of a differential equation Updated 2025-07-16
Order of the highest derivative that appears.
Partial derivative Updated 2025-07-16
Biconvex spherical lens Updated 2025-07-16
Each side is a sphere section. They don't have to have the same radius, they are still simple to understand with different radiuses.
The two things you have to have in mind that this does are:
- This is for example why you can use lenses to burn things with Sun rays, which are basically parallel.Conversely, if the input is a point light source at the focal length, it gets converted into parallel light.
- image formation: it converges all rays coming from a given source point to a single point image. This amplifies the signal, and forms an image at a plane.The source image can be far away, and the virtual image can be close to the lens. This is exactly what we need for a camera.
Bicycle tire sizes Updated 2025-07-16
Yes, Sheldon he has separate American and British English versions of pages!!!
For example, Kross bicycle (2017) had a Schwalbe tyre with markings:When inflated, the tires were about 3.5cm wide as measured with a ruler.
And the Mavic A319 rim had markings:
622x19C
In this:
- ISO (Etrto): 42-622. So:
- 42 is the inner rim width. The actual inflated tire is going to be even wider.
- 622 is the bead seat diameter. The actual inflated tire is going to be even wider.
- imperial: 28 x 1.60
- French: 700x40C:
- meaning of the "C" asked at: bicycles.stackexchange.com/questions/16190/what-does-the-c-in-bicycle-tire-size-mean
Chain rule Updated 2025-07-16
Taxonomic rank Updated 2025-07-16
Bilinear map Updated 2025-07-16
Linear map of two variables.
More formally, given 3 vector spaces X, Y, Z over a single field, a bilinear map is a function from:that is linear on the first two arguments from X and Y, i.e.:Note that the definition only makes sense if all three vector spaces are over the same field, because linearity can mix up each of them.
The most important example by far is the dot product from , which is more specifically also a symmetric bilinear form.
Bill Gates Updated 2025-07-16
The enemy?
You must watch this: Video "Bill Gates vs Steve Jobs by Epic Rap Battles of History (2012)".
Bill Haydon Updated 2025-07-16
Bill Nye Updated 2025-07-16
The problem as with many well known science communicators is that he falls too much on the basic side of the the missing link between basic and advanced.
Binet (École Polytechnique) Updated 2025-07-16
Biochemistry course of the University of Oxford Updated 2025-07-16
BioCyc promoter database Updated 2025-07-16
E.g. for E. Coli K-12 MG1655: biocyc.org/group?id=:ALL-PROMOTERS&orgid=ECOLI For some context see e. Coli K-12 MG1655 gene thrL + e. Coli K-12 MG1655 gene thrA + thrB + thrC all of which are in the same transcription unit.
Brain by species Updated 2025-07-16
Brain cell type Updated 2025-07-16
Function by signature Updated 2025-07-16
In this section we classify some functions by the type of inputs and outputs they take and produce.
Fraternities and sororities Updated 2025-07-16
Oxford physics course handbook Updated 2025-07-16
The normal navigation to them was paywalled, but the static files are served without login checks if you know their URL. One way to go about it is to search by prefix on the Wayback Machine: web.archive.org/web/*/https://www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/*
The last handbooks we can find are 2020/2021, they might have move to a new more properly paywalled location after that year.
- 2020/2021:
- Year 1: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y1-ug-handbook-2020-2021-final-47501.pdf
- Year 2: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y2-ug-handbook-2020-2021-final-47495.pdf
- Year 3: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y3-ug-handbook-2020-2021-final-47496.pdf
- Year 4: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y4-ug-handbook-2020-2021-final-47497.pdf
- Physics and Philosophy: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/pphandbook-47524.pdf
- 2019/2020. They seem to have split the handbook up per year after some point.
- Year 1: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y1-ug-handbook-2019-2020-final-8october2019-45541.pdf
- Year 2: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y2-ug-handbook-2019-2020-final-8-october2019-45542.pdf
- Year 3: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y3-ug-handbook-2019-2020-updated-21november2019-45955.pdf
- Year 4: www2.physics.ox.ac.uk/sites/default/files/contentblock/2011/06/03/y4-ug-handbook-2019-2020-final-8october2019-45544.pdf
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