

Previous post was about light spectrum, but this one zoom in even further โ right down to the smallest unit of light itself: the photon.
Befor this I think of light as waves yes is true.
But light is also made of particles.
That particle is the photon โ one of the strangest and most important things in physics.
Letโs dive in ๐
A photon is the tiniest possible โpieceโ of light.
It has:
no weight (zero mass)
no electric charge
always travels at the speed of light (299,792,458 m/s , about 300,000 km/s)
behaves as both a wave and a particle at the same time ๐๐ปโโ๏ธ๐ณ
Yeahโฆ light is weird. Welcome to quantum physics! ๐
This is known as waveโparticle duality.
As a wave, a photon creates the colors of light, radio waves, microwaves, etc.
As a particle, it transfers energy โ like in solar panels, camera sensors, and photosynthesis.
Photon: CEO of multitasking. ๐
Light: the ultimate multitasker . ๐
Light said โwhy choose one when I can be both?โ ๐
Light: particle today, wave tomorrow, both right now. ๐
Light: literally doing two jobs at once since 13.8 billion years ago. ๐
It seams that photons are responsible for almost EVERYTHING
witch lets human understand the universe,
for starter:
That warm feeling on your face? Means billions of photons high-fiving your skin every second.
When your screen looks bright and colorful, itโs really just billions of photons flying into your eyes in a perfectly controlled way.
Plants literally eat photons to grow๐ด.
Everything we know about stars, galaxies, and the Big Bang โ
we learned because photons traveled across the universe to reach our telescopes.
Lasers, fiber optics, MRI machines, solar cells โ
all powered by photon physics.
โก Photons never feel or experience time
For a photon, being born and crashing into something happen at the exact same moment. Its whole journey feels like zero seconds โ even if it took 13 billion years for us!
๐ Color = energy level
Super energetic photons โ blue/violet
low-energy photons โ red Thatโs why the rainbow is sorted by energy!๐ Photons from the early universe are still traveling today.
The photon may be tiny โ but it shapes everything we see, feel, and understand.
It's not just the building block of light.
It's the messenger of the universe, carrying information across space and time.
made with love๐