Monday, October 19, 2026

Finding Balance in Chaos: The Physics of Staying Calm Before Exams

 

Finding Balance in Chaos - Art Version
🎨 AHA! Physics Moments | 3D Needle Felt Art Edition

Finding Balance in Chaos

Do you feel overwhelmed?
Stressed?
Like everything is happening at once?

Exams.
Assignments.
Expectations.
Noise.
Chaos.

Many years ago, after a laboratory session, one of my students quietly stacked a few stones on the lab bench.

No instructions.
No purpose.
Just curiosity.

I stopped, looked, and took a photograph.
Years later, I turned that simple moment into the artwork you see here.

What amazed me was this:
The stones were not balanced because they were perfect.
They were balanced because each stone found its place.

Physics calls it the centre of gravity.
Life calls it balance.

Sometimes we think we need to fix everything before we can feel calm.
Maybe not.
Maybe balance is not about controlling every problem.
Maybe balance is simply learning what deserves our energy and what does not.

"To every student facing examinations:
You do not need to carry the whole mountain today.
Just focus on the next stone.
Then the next.
Then the next.
One careful step at a time."

In the Mirror of Time: The Original Laboratory Moment

The quiet bench in Limbang, 2020. Where art meets reality.

In the Mirror of Time (时光似镜)

 



À la recherche du temps perdu. 

Young readers, forgive me.

Lately, I seem to keep showing you old laboratory artefacts.

A rheostat from Britain.

A spring balance still remembering Dynes.

Cotton thread wound on a wooden spool.

Forgotten compasses from Japan.

And today, a humble Chinese-made Diamond mechanical stopwatch.

Perhaps this is what happens when one reaches a certain stage of life.

One starts looking back.


At first, I told myself that my Heritage Lab Museum was about preserving old laboratory equipment.

Documenting vintage apparatus before they disappear.

Saving a few stories from being forgotten.

But standing before this stopwatch, I found myself asking a more uncomfortable question:

Am I preserving history, or merely resisting time?

After all, no museum can bring back the past.

No photograph can recreate a lesson that ended forty years ago.

No artefact can rewind a life.

The hands of a stopwatch can be reset.

Time cannot.


Yet the longer I spend among these forgotten objects, the more I realise that they are not really about science.

They are mirrors.

And every mirror reflects something different.

The old British cotton thread whispers of a generation that refused to compromise, believing that even the smallest component deserved the highest standard.

The heavy spring balance reminds me that physics was once something students could see and feel, not merely read from a screen.

The worn rheostat speaks of craftsmanship built to survive decades.

Together, they tell a story.

Not about equipment.

About values.


And that is what troubles me.

Many laboratories today are modern.

Better equipped.

More digital.

More efficient.

Yet sometimes I wonder whether we are witnessing something deeper:

a laboratory that has become technologically advanced,

but spiritually disconnected from its own past.

Our students may never know how much care, thought and craftsmanship previous generations invested simply to measure a force, time an oscillation, or reduce an error by a fraction of a unit.

They inherit the answers.

But not always the struggle that produced them.

------------------------------------------------------------------------------------------------

One day, this stopwatch will stop.

So will I.

So will every generation that came before us.

But perhaps memory has a purpose.

Not to defeat time.

Only to ensure that something worth remembering continues to travel through it.

Not by nostalgia, but by LEGACY. ⏱️


Sunday, October 18, 2026

The Spring Balance That Remembers Dynes-The Force Unit That Disappeared


Young readers, let me show you a forgotten piece of Physics history.

Look carefully at this old PARCO Spring Balance.

You'll immediately recognize the scale on the left:

Newtons (N)

That's the force unit you learn in today's Physics classroom.

But look at the scale on the right.

DYNES.

Ever heard of it?

Most students today haven't.


Before the world fully adopted the SI System, force was commonly measured in dynes under the old CGS system.

This spring balance was built during a fascinating transition period.

One instrument.

Two worlds.

Two systems of measurement.

On the left:

✅ Newtons

On the right:

✅ Dynes

A living bridge between two eras of Physics.


What fascinates me isn't the instrument itself.

It's the experience.

A rock is suspended.

The spring stretches.

The pointer moves.

Students don't just read a number.

They literally watch force happen.

They can see gravity pulling.

They can see the spring resisting.

They can see Physics becoming visible.


Today, a digital scale instantly displays a value on a screen.

Fast.

Convenient.

Accurate.

But a spring balance tells a story.

It allows students to witness the struggle between gravity and elasticity with their own eyes.


Sometimes progress causes us to gain precision.

Sometimes it causes us to lose perspective.

This old spring balance reminds us that measurements once had history attached to them.

Every mark on the scale represented more than a number.

It represented an evolving understanding of how humanity describes nature.


AHA! Moment

Most students today learn Newtons. This instrument remembers Dynes. One scale measures force. The other measures time.

Not by calculation, but by HISTORY.


 

Saturday, October 17, 2026

🧵 The String That Held Up Physics

 

At first glance, it is just a humble spool of cotton thread.

No electronics.

No display screen.

No moving parts.

Nothing that would catch the attention of most students today.

Yet this small wooden spool travelled thousands of kilometres from Britain into school laboratories in Malaysia.

Why?

Because someone believed that even a piece of string mattered.


This Anchor No. 60 Cotton Thread, wound on a solid wooden spool, was once used in Physics experiments involving pendulums, mechanics and measurements.

To many people, it was merely a consumable.

Something to be used up and replaced.

To the educators who built our laboratories decades ago, it was something else.

A scientific instrument begins long before the instrument itself.

It begins with the materials.

The thread.

The ruler.

The clip.

The smallest details.


Today we often ask:

"What's the cheapest option?"

Those before us asked a different question:

"Can it be trusted?"

That difference built generations of experiments.

And perhaps generations of scientists.

AHA! Moment

The most valuable part of this spool is not the thread. It is the mindset behind it. Someone believed that even the smallest component in an experiment deserved to be made properly.

Not by complexity, but by STANDARDS. 🧵

SPM Physics: AHA! Electrical Conductivity – Quick Facts Edition

 


Students often confuse conductors, semiconductors, and insulators. This quick‑fact guide shows the differences in a simple, exam‑ready way.

⚡ Conductivity Scale (Quick Facts)

  • Best conductor: Silver (Ag) → lowest resistivity, but too costly.

  • Practical conductor: Copper (Cu) → good conductivity, affordable, used in wiring.

  • Semiconductor: Silicon (Si) → intermediate resistance, foundation of electronics.

  • Insulators: Rubber, glass, ceramic → very high resistance, used for safety.

📐 Formula Reminder

R=ρLA
  • Longer wire → higher resistance.

  • Thicker wire → lower resistance.

  • Material choice → resistivity matters.

🛠️ Applications in Daily Life

AHA! Conductivity explained in one glance. Not by sight, but by INSIGHT!

#AHAPhysicsMoments #Physics in Life, Life in Physics #SeeWithPhysicsEyes #PhysicsWithInsight