YW.

Physics. Design. A little curiosity.

Yuzhe Wei.

Turning questions into things you can test.

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I explore how physics, computation, and design can turn abstract questions—and everyday constraints—into things people can test and use.

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Selected work

A question is
just the beginning.

A model, a product, a mechanism, and a community question—each shaped by a constraint worth understanding.

01 / Product

Letter World

A focused vocabulary-practice platform. An owner-reported 45-day snapshot records 308 students and 310,692 practice responses.

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V2.0 live

Letter World vocabulary practice showing a word-recognition question.Letter World feedback after a vocabulary answer.
Word recognition. Immediate feedback.

02 / Model

Can a Two-State Model Explain the Observations?

A computational study of finite-time model diagnosis, measurement timing and readout uncertainty. Read the v1.5 manuscript and its synthetic-count validation.

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Independent research / ongoing

Manuscript v1.5, Figure 1: conditional sufficient shot bounds for 72 fixed designs under assumed detector envelopes.

03 / Mechanism

Freeing the Handlebar

A frame-mounted shifter I designed and tested, now installed on my bike using the bottle-cage mounting points to move the control off the handlebar.

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Installed prototype

Yuzhe's frame-mounted shifter installed on a pink mountain bike.

04 / Community

Rural Physics Initiative

An in-progress effort to design low-cost, engaging physics experiments for schools with limited laboratory access.

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In progress

AI-generated illustration of a lemon-battery experiment with metal electrodes, connecting wires and an LED; not a photograph of a completed project prototype.
Lemon battery · AI-generated illustration
01 / 04

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Model / Product / Mechanism / Community

One habit.
Different scales.

Each project begins by making a question specific enough to test—and by being honest about what the current evidence can support.

  1. 01

    Model

    Understand physical systems

    Test where a simplified model remains reliable, and preserve the regions it cannot yet resolve.
  2. 02

    Product

    Build usable learning tools

    Turn a learning gap into a repeatable system, then revise it through real feedback.
  3. 03

    Mechanism

    Redesign a physical constraint

    Use the bike frame itself to rethink a control-routing problem encountered while riding.
  4. 04

    Community

    Widen access to experiments

    Build local evidence, teacher input, safety review, and a responsible path toward a pilot.
Yuzhe, on the right in a blue jacket and yellow trousers, holding hands with his father, on the left in an orange jacket, on a misty hike.A moment on the trail, with my father.

A little more human

Curious beyond
the classroom.

On the trail. On stage. Always finding another question.

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I am a high school student based in Xiamen, China. I notice where a model, product, mechanism, or educational system meets a constraint—and try to develop a testable response. That might mean checking a quantum approximation, revising a vocabulary game, moving a bicycle control, or finding out what a teacher needs before designing an experiment kit.

More about me