He tried to recreate those effects at the Cavendish Laboratory, but was frustrated until the discov  ery of radioactivity provided him with a source of ionizing particles.
The idea for this invention came on a vacation to Ben Nevis in 1894, when a scientist noticed the optical effects of the sun shining through the mist. He tried to recreate those effects at the Cavendish Laboratory, but was frustrated until the discov  ery of radioactivity provided him with a source of ionizing particles. FTP, name this device, which causes vapor to condense on charged particles, making their tracks visible, introduced in 1911 by Charles Wilson.
The idea for this invention came on a vacation to Ben Nevis in 1894, when a scientist noticed the optical effects of the sun shining through the mist.
the cloud chamber