M: Uh, well, I'd like to catch a return flight on the twenty-ninth. Oh, and I'd like the cheapest flight available.
W: Okay. Let me see. Um, hmm… M: Yeah?
W: Well, the price for the flight is almost double the price you would pay if you leave the day before.
M: Whoo. Let's go with the cheaper flight. By the way, how much is it? W: It's only $980.
M: Alright. Well, let's go with that.
W: Okay. That's flight 1070 from Salt Lake City to New York, Kennedy Airport, transferring to flight 90 from Kennedy to Helsinki.
M: And what are the departure and arrival times for each of those flights?
W: It leaves Salt Lake City at 10:00 AM, arriving in New York at 4:35 PM, then transferring to flight 90 at 5:55 PM, and arriving in Helsinki at 8:30 AM the next day. M: Alright. And, uh, I'd like to request a vegetarian meal. W: Sure, no problem. And could I have your name please? Text 10:
The first bicycle appeared in France in the 1790s. It was a little wooden horse with a fixed front wheel. Because the wheel was fixed, it could not be turned right or left. The only way it could be controlled was by the rider pushing against the ground with his or her feet. In 1817, a German replaced the fixed front wheel with one that could be turned. Now the wooden horse could be directed right or left. The rider still needed to push it with his or her feet on the ground. In 1839, a Scottish MacMillan designed the first bicycle-like machine with foot board and rode it for 40 miles in only 5 hours. The bicycle got more comfortable in 1869 when rubber tires were introduced. Around the same time, the front wheels began to grow larger while the back wheels got smaller. During the 1880s, bicycles enjoyed a sudden growth in popularity. However, they weren’t very safe. Sitting high up towards the front of the bicycle and traveling very fast, the rider could be easily thrown over the front wheel if the bicycle hit a small stone. Fortunately, the “safety bicycle” was invented in 1884. The safety bicycle had equal-sized wheels and tires with air in them. And more improvements quickly followed. No doubt there will be further improvements in design and materials in the future.
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