The first reliable spark plug was invented in 1903 by Oliver Lodge. They're aptly named as well; spark plugs are simply insulated plugs that are screwed into an internal combustion engine's cylinder head to deliver the spark that ignites the mixture of air and fuel in the combustion chamber.
Are Irish Twins Technically Twins? Irish twins are not technically twins, meaning two people born from the same gestational period. It's a colloquial way to classify siblings that are born close together. Sometimes the use of the term Irish twins is expanded to describe any siblings that are close in age. Some even stretch the definition to include siblings less than two years apart. Some would call that almost Irish twins or practically Irish twins..
But it's bad news for Irish twins John and Edward Grimes - dubbed vile creatures by Simon Cowell - who managed to scrape together just 35,000 hits, 20 times less than Danyl. Fans flock to net Danyl But it's 14-year-old Irish twins Leona and Lisa Maguire who have been grabbing the Curtis Cup headlines after both were named in the squad. Teenagers take the lead in GB's Curtis Cup mission On January 14, Irish twins John and Edward roll into Teesside.