About BulbBrain

What BulbBrain Is

BulbBrain is a small, independent, advertising-supported site built around six free tools and a handful of guides for memory, focus, critical thinking, and learning skills. There is no company behind it, no research lab, and no clinical staff — just a working set of calculators and an illustrated museum of the mind. What follows is a plain account of how those tools are built and what they can and can’t tell you.

How the Tools Are Built

Each tool on BulbBrain is a small, transparent calculation. None of them run a hidden model or collect data to “learn” about you — you put numbers in, a known formula runs, and you get a number out.

• Reading Speed Calculator divides the number of words you read by the minutes it took, giving your speed in words per minute (WPM), shown against the typical adult reading-speed range. It measures raw speed only — it has no way to check how much of what you read you actually understood.
• Study Time Calculator multiplies your page count by your own minutes-per-page pace to estimate a session length in minutes and hours. It’s arithmetic on the pace you supply, not a prediction that adjusts for how hard the material is.
• Memory Retention Calculator is modeled on the Ebbinghaus forgetting curve, the exponential-decay description of memory loss over time first documented by Hermann Ebbinghaus in the 1880s. Enter days since you learned something and a memory-strength value, and it estimates the percentage you’d be expected to retain, plus a suggested review point. It’s a generalized curve, not a measurement of your specific memory.
• Focus Session Calculator uses Pomodoro-style scheduling math: it splits your available minutes into focus and break blocks and reports how many complete cycles fit and your total focus minutes. BulbBrain is not affiliated with the creators of the Pomodoro Technique — the tool just applies the same block-scheduling arithmetic.
• Learning Style Assessment tallies your answers across four categories — Visual, Auditory, Reading/writing, and Kinesthetic (the VARK model) — and converts the tally into percentages. VARK is a widely used self-report framework, not a clinically validated diagnostic test, and cognitive-science research is genuinely divided on whether matching study methods to a “learning style” improves learning at all. Treat the result as a self-reflection prompt, not a verdict.
• Brain Training Progress Tracker computes plain percentage change — (current score minus baseline score, divided by baseline) — on two numbers you enter from any brain-training exercise. It checks your arithmetic; it doesn’t independently verify that your baseline test was a sound one.

Beyond the tools, The Cognition Museum is an illustrated walk through the brain and its regions, memory and attention, the thinkers who mapped how we learn, and techniques that sharpen thinking. Its entries, images, and facts are drawn from Wikipedia and Wikimedia Commons rather than written from scratch here — it’s a reference gallery, not original research. The Learn section organizes the same kind of wiki-sourced material by topic, and the blog adds shorter, more practical articles alongside it.

What This Is — and Isn’t

BulbBrain is free to use and pays for itself through advertising; that’s the entire business model, and it’s worth saying plainly rather than leaving it unstated. The site is not affiliated with the creators of the VARK model, the Pomodoro Technique, Hermann Ebbinghaus’s estate, or Wikipedia and Wikimedia Commons; it simply applies or references their public methods and content. Nothing on BulbBrain is medical, psychological, or clinical advice. The tools give estimates and general guidance based on the numbers you enter — if you have a real concern about memory, attention, a learning difficulty, or your mental health, talk to a qualified professional rather than a calculator.

Questions about a specific tool, or spotted something that looks wrong? Get in touch on the contact page.