Page 8 - Biotechnology newsletter 2023-24

Laser Lightning Rod: A New Way to Control
Lightning Strikes

Lightning is probably one of the most impressive aspects of nature.
We watch it in awe when it strikes as the light fills the sky. We often see
lightning before thunder strikes because light travels faster than sound.
This powerful scenario can sometimes feel scary, but its appearance leaves
us in awe. Although lightning is an exceptional occurrence which appears
quickly, occupying space in the sky and illuminating the night with a flash
of light, scientists now have created a laser lightning rod that can
manipulate and guide lightning strikes. This device, known as a laser
lightning rod, aims to enhance protection for places like airports,
refineries, and wind farms. Unlike traditional lightning rods, it utilizes laser
filamentation to form an ionized air channel, directing lightning to safe
locations like grounded towers or lightning farms.
In 2021, Professor Jean-Pierre Wolf and his team conducted a
ground-breaking experiment on Switzerland’s Säntis mountain,
demonstrating the laser’s ability to trigger and redirect lightning
discharges. This real-world test marks a significant step in the
development of laser lightning rods, potentially opening doors for further
advancements. The laser lightning rod boasts advantages such as precise
control over lightning strikes, minimizing damage risks, and the potential
to harness lightning energy. Additionally, it could contribute to studying
lightning’s scientific aspects, including its impact on the atmosphere and
climate.
The researchers, led by Professor Wolf from the University of
Geneva, plan to refine the laser lightning rod’s performance, ensuring
reliability across various weather conditions. Collaboration with other
institutions and industries is also on the agenda to explore the
technology’s diverse applications.

~Levi Pereira
T.Y. B.Sc Biotechnology

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