
Study links lightning with gamma rays inside clouds
June 25 (UPI) -- Weak gamma-ray glows appear to precede lightning strikes and accompanying gamma-ray flashes under certain conditions. Over the last several years, researchers at the University of Tokyo worked with schools and businesses in Kanazawa, Ishikawa Prefecture, in central Japan, to install a network of radiation monitors for studying lightning. "Forever, people have seen lightning and heard thunder. These were the ways we could experience this power of nature," University of Tokyo graduate student Yuuki Wada said in a news release. "With the discovery of electromagnetism, scientists learned to see lightning with radio receivers. But now we can observe lightning in gamma rays -- ionizing radiation. It's like having four eyes to study the phenomena." Scientists used observations ...