What is the viral ‘Hiroshima Romance’ fireworks? Science explained behind this viral trend

"Hiroshima Romance", a new type of firework produced by China. (Image: X/@PicturesFoIder)

• A viral fireworks display from Liuyang, China, is nicknamed "Love in Hiroshima".
• The display showcases advanced pyrotechnic engineering and precise choreography.
• Liuyang engineers use strict safety protocols for large-scale firework shows.

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A 27-second clip from Liuyang, China’s renowned fireworks hub, has taken social media by storm. The display nicknamed “Love in Hiroshima” by some online viewers, shows massive pyrotechnics choreographed with precision. There is science behind this firework trend.

Explosions bloom in perfect timing, filling the sky with light and colour, this is a testament to modern firework engineering. While the nickname sparked controversy online, science enthusiasts are fascinated by the technology, chemistry and engineering that make such a display possible.

Why Is ‘Love in Hiroshima’ Trending Suddenly?

The clip went viral because of its stunning visuals and provocative nickname. Some netizens praised the display for its drama and scale. The viral video shows the technical brilliance and sheer spectacle of the fireworks, which are unlike anything ordinary viewers have seen. Creating explosions of this scale requires meticulous safety planning.

New type of fireworks produced in China, they call it "Hiroshima Romance" pic.twitter.com/nVEG2IyZ1K

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— non aesthetic things (@PicturesFoIder) February 10, 2026

Liuyang: China’s Fireworks Capital

Liuyang has long been called the world’s hub for pyrotechnics. Engineers here experiment with formulations, launch angles and ignition sequences to push the boundaries of scale and colour.

It is a new, high-intensity design capable of producing cinematic-scale bursts visible from kilometres away. Each explosion is choreographed to maximize brightness, pattern and duration.

Science Behind the Firework made in China 

Modern pyrotechnics rely on precise chemistry and physics. Metal salts create vibrant colours. These colours symbolise something, like strontium for red, copper for blue and sodium for yellow.

Oxidisers fuel the explosions, while careful ratios control timing, height and intensity. The “Love in Hiroshima” display uses advanced ignition systems to synchronise multiple bursts. It produced patterns that appear cinematic and choreographed.

Is This Explosion Harmful?

While visually spectacular, the display is generally safe for spectators. Liuyang engineers follow strict safety protocols, including launch spacing, timing accuracy and blast modelling. Overall, the display balances spectacle with science-based safety engineering.

Fireworks as Applied Science

Today, fireworks are a blend of science and art. This China's city is known as the world’s firework capital. Liuyang keeps on innovating such scientific experiments to create displays that are bigger, brighter and more precise.

This viral video is an example of how science, chemistry and engineering combine perfectly with each other. "Love in Hiroshima" is nothing but turning chemical reactions into a visual spectacle.