Question

what are canal rays?​

Answer 1

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An anode ray is a beam of positive ions that is created by certain types of gas-discharge tubes. They were first observed in Crookes tubes during experiments by the German scientist Eugen Goldstein, in 1886. Later work on anode rays by Wilhelm Wien and J. J. Thomson led to the development of mass spectrometry

Answer 2

ᴀɴ ᴀɴᴏᴅᴇ ʀᴀʏ ɪs ᴀ ʙᴇᴀᴍ ᴏғ ᴘᴏsɪᴛɪᴠᴇ ɪᴏɴs ᴛʜᴀᴛ ɪs ᴄʀᴇᴀᴛᴇᴅ ʙʏ ᴄᴇʀᴛᴀɪɴ ᴛʏᴘᴇs ᴏғ ɢᴀs-ᴅɪsᴄʜᴀʀɢᴇ ᴛᴜʙᴇs. ᴛʜᴇʏ ᴡᴇʀᴇ ғɪʀsᴛ ᴏʙsᴇʀᴠᴇᴅ ɪɴ ᴄʀᴏᴏᴋᴇs ᴛᴜʙᴇs ᴅᴜʀɪɴɢ ᴇxᴘᴇʀɪᴍᴇɴᴛs ʙʏ ᴛʜᴇ ɢᴇʀᴍᴀɴ sᴄɪᴇɴᴛɪsᴛ ᴇᴜɢᴇɴ ɢᴏʟᴅsᴛᴇɪɴ, ɪɴ 1886. ʟᴀᴛᴇʀ ᴡᴏʀᴋ ᴏɴ ᴀɴᴏᴅᴇ ʀᴀʏs ʙʏ ᴡɪʟʜᴇʟᴍ ᴡɪᴇɴ ᴀɴᴅ ᴊ. ᴊ. ᴛʜᴏᴍsᴏɴ ʟᴇᴅ ᴛᴏ ᴛʜᴇ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛ ᴏғ ᴍᴀss sᴘᴇᴄᴛʀᴏᴍᴇᴛʀʏ.

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