Advertisement
Science
ChinaScience

How Cleopatra’s bath loofah may help China’s jets vanish from radar

From ancient royal baths to future stealth warfare – a humble kitchen vegetable may hold the key to defeating space-based radar hunters.

Reading Time:3 minutes
Why you can trust SCMP
6
Organic Luffa Cylindrica, better known as a loofah, is a gourd vegetable that Chinese scientists say could be turned into stealth coating to make advanced aircraft invisible. Photo: Getty
Stephen Chenin Beijing

Over 2,000 years ago, in a secluded bath chamber along the banks of the Nile, Queen Cleopatra of Egypt may have reached for an unlikely luxury: a fibrous, spongelike gourd – the loofah.

This porous plant was prized by ancient Egyptian royalty as a natural exfoliant, a symbol of purity and refinement. Light as a feather, yet strong and intricately structured, the loofah scrubbed away impurities – both physical and spiritual – in rituals that blended hygiene with holiness.

Today, this unassuming vegetable – Luffa cylindrica – is once again stepping into the spotlight as a powerful weapon shield in the silent battle of electronic warfare.
Advertisement
In a peer-reviewed study published in the journal High Power Laser and Particle Beams, a team of scientists from the People’s Liberation Army (PLA) and China Aerospace Science and Industry Corporation (Casic) has transformed the loofah into a next-generation stealth coating capable of shielding advanced aircraft from the most formidable threat in modern warfare: space-based radar satellites.

For decades, stealth aircraft like the American F-22 Raptor and B-2 Spirit relied on shape-shifting designs and radar-absorbing materials to shrink their radar cross-sections (RCS) – sometimes down to the size of a bird. But technology has caught up.

Advertisement

China’s deployment of a revolutionary low-Earth-orbit radar satellite constellation has changed the game.

Advertisement
Select Voice
Choose your listening speed
Get through articles 2x faster
1.25x
250 WPM
Slow
Average
Fast
1.25x