Skip to content
Ethen Science · proposed directionIn development

Show the working.

Every number arrives with its method, its assumptions and the line of code behind it. Change an input and watch the result, and the reasoning, update together.

Listed as in development; the route is proposed. The calculation shown is a standard formula, computed deterministically on this page.

Pendulum period · Ethen Science notebookIllustrative
In [1]

Question. How long does one swing take for a simple pendulum of length L?

Length L
In [2]
g = 9.81            # m/s², standard gravity
L = 1.00            # m
T = 2 * pi * sqrt(L / g)
Out[2]

T = 2.006 s

0s1s2s3s4s0 m1 m2 m3 m4 mT = 2.01 s
Note

Method & assumptions. Small-angle approximation (under about 15°), rigid massless rod, no air resistance. Doubling the length multiplies the period by √2, about 1.41.

A fixed textbook formula computed in your browser. Not a model prediction.

Length 1 metres, period 2.01 seconds.

Why Science

Results you can retrace.

  1. Method beside the result

    Assumptions and limits sit next to every answer, not in a footnote.

  2. Change one thing

    Adjust an input and the calculation, chart and note stay in step.

  3. Deterministic where it counts

    Arithmetic runs as code, so the same input always gives the same number.

Status

Where it is today.

In development

Lifecycle labels come from the public status registry. A label describes where the work is, not a promise of a date.

See availability
Registry
Listed as in development.
Page
New with this site update. The product itself is in development.
This notebook
A fixed physics formula, computed in the browser.
Claims
No scientific results or discoveries are claimed.

On this page: A proposed notebook layout; How method notes travel with results; A deterministic calculation. Not shown: A working Science product; Model-generated findings; Research results.

Questions

Is Science available?
No. It is listed as in development and its route is proposed.
Is the number on this page from an AI model?
No. It is the textbook pendulum formula computed by code in your browser.
How is Science different from Research?
Research is about sources and documents. Science is about calculations, methods and reproducible working.