What are whistlers and how far can they reach?
🔘 A whistler is a very low frequency (VLF) radio wave generated by different types of lightning, including volcanic lightning.
🔘 These special electromagnetic waves are so named because they can be converted to sound signals and, with a VLF receiver, anyone can listen to the everyday melody of millions of lightning bolts (even if not every lightning bolt becomes a whistler). A listener in New Zealand can even hear a volcano in Alaska erupt.
🔘 Frequencies of terrestrial whistlers are 1 kHz to 30 kHz, with maximum frequencies usually at 3 kHz to 5 kHz.
🔘 For decades, researchers thought lightning-induced whistlers would remain trapped relatively close to Earth’s surface, below about 1,000 km.
⚡️ Now scientists have discovered that whistlers can reach distances up to 20,000 km above the planet’s surface, travelling deep into the highest layers of the atmosphere, where it could threaten the safety of satellites and astronauts.
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🔘 A whistler is a very low frequency (VLF) radio wave generated by different types of lightning, including volcanic lightning.
🔘 These special electromagnetic waves are so named because they can be converted to sound signals and, with a VLF receiver, anyone can listen to the everyday melody of millions of lightning bolts (even if not every lightning bolt becomes a whistler). A listener in New Zealand can even hear a volcano in Alaska erupt.
🔘 Frequencies of terrestrial whistlers are 1 kHz to 30 kHz, with maximum frequencies usually at 3 kHz to 5 kHz.
🔘 For decades, researchers thought lightning-induced whistlers would remain trapped relatively close to Earth’s surface, below about 1,000 km.
⚡️ Now scientists have discovered that whistlers can reach distances up to 20,000 km above the planet’s surface, travelling deep into the highest layers of the atmosphere, where it could threaten the safety of satellites and astronauts.
Subscribe- t.me/askmenow