The Chinese scientists have developed a non-nuclear explosive device.
It is based on hydrogen fuel that produces a white-hot fireball lasting over two seconds.
This duration of the fireball generated by the two kg bomb is 15 times longer than the equivalent TNT blasts.
It uses magnesium hydride, a compound that can store hydrogen at significantly higher densities than conventional pressurised tanks.
When detonated by a standard explosive, the magnesium hydride undergoes the rapid thermal decomposition, releasing hydrogen gas.
This gas ignites upon mixing with the air, creating a fireball capable of reaching temperatures exceeding 1,000°C, much higher than the temperatures produced by TNT explosions.