为什么有些火山喷发时会喷出壮观的熔岩喷泉,而另一些火山喷发时熔岩喷出却较为平静?科学家们发现,岩浆内部极端高温的隐性效应可能有助于解释这种差异。实验Why do some volcanoes erupt with spectacular lava fountains while others release lava more quietly? Scientists have discovered that a hidden effect of extreme heat inside magma may help explain the difference. Experiment