Modern emails, pagers, faxes, and cell phones! It's all about communication with Timeblazers Sam and Jen, who travel back to test out different communication methods. The message-in-a-bottle tactic proves it could be a long wait before the tide comes in to carry the bottle to sea. It wasn't that long ago that to "log on" meant to throw a log on the fire to send smoke signals. There was the Pony Express and horse-drawn stagecoaches in the 1800s. Then came carrier pigeons, the telegraph, telephones, the Post Office, and overnight delivery.