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Guides to every tool, real jobs that take several tools, help for students and new science in plain words.
Tool guides 21
One guide for every tool: what it is for, the idea behind it, how to use it, real uses and a worked example.
Open →Using tools together 3
Real jobs that take more than one tool, step by step, and how one tool helps in many fields.
Open →For students 3
Short, friendly guides for school students on using the Learn activities and tools properly.
Open →Discoveries 3
New research from open-access papers, in plain words, and how to check the numbers with fibub tools.
Open →Latest articles
- 3D vectors explained: sum, dot product, cross product and skew lines
What adding vectors, the dot product and the cross product mean in pictures, and how to find the angle and shortest distance between two lines in space.
- A monthly money routine: budget, bills and plan in one hour
A simple monthly routine that uses the budget calculator, the bill calendar and the weekly planner, with a worked example for a two-income household.
- A planet in the Neptune desert: TOI-333b, and how to check its numbers
A 2026 open-access paper reports TOI-333b, a planet about four times Earth's size that circles its star in under four days. Here is what the team found and how to test the maths with fibub tools.
- Angular momentum: why a spinning skater speeds up
Understand conservation of angular momentum, moment of inertia and rotational energy with a skater who pulls her arms in, and a worked example.
- Banked curves: why roads tilt and how fast a car can safely turn
How the normal force and friction keep a car on a banked curve, the ideal no-friction speed, the safe speed range, and a full worked example.
- Bill calendar: plan bills and pay days so you never run short
Learn how a monthly bill calendar with a running balance shows money gaps early, with a worked example and common mistakes.
- Binding energy per nucleon explained, with a worked example
Why nuclei weigh less than their parts, how mass defect gives binding energy, and why fission and fusion both release energy. A clear guide to the binding energy lab.
- Class 10 Acids, Bases and Salts: learn it with free online activities
Indicators, the pH scale, neutralisation and everyday salts for Class 10, with four free activities, safe kitchen experiments and quick self-check questions.
- Class 8 electricity: magnetic and heating effects with fibub
Which fibub activities to use for Class 8 electricity: electromagnets, the heating effect of current and fuses, with good habits and a safe home experiment.
- Describing motion for Class 9: which fibub activity to use, and how
A Class 9 guide to the fibub activities for the chapter on describing motion around us: distance, velocity, acceleration, motion graphs and the equations of motion, with habits and questions to check yourself.
- Energy on a track: kinetic, potential and heat, and the loop
How kinetic and potential energy swap on a rolling ball, why friction makes heat, and how high a ball must start to get round a loop, with worked numbers.
- Equations of motion: how v = u + at, s = ut + ½at² and v² = u² + 2as fit together
The three equations of motion for steady acceleration, what each symbol means, and how to see them on a velocity-time graph. Solve a problem from three known values, and find a car's stopping distance.
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Open →Usage stats
How much each tool is used, as anonymous totals. Nothing about you is counted.
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