Helloooooo…..

1. Please get out your “Boom” video worksheets

2. We are in the library tomorrow, don’t forget! (6th lunch pd 6/8)

3. You should have out your binder, a pen/pencil & a piece of scratch paper

Why are there time zones???

Where did we get this geeeeenious idea?

Any guesses?Write it on your scratch

paper--- no guess is a bad guess! If you know, keep it to

yourself

Why are there time zones???

• Caused by the r&r boom• Back then, towns kept their own time• Sun directly over town = noon– How is this a problem state to state?

• 1883, all railway clocks set to a new standard to make travel more consistent & easier

• The country caught on!

Industrial Growth1865-1914

• Same time westward expansion is taking place• While many moved west, a lot

stayed to build up the economy

Railroads Spur Industry• At first, railroads (R&R) were

locally run• Domestic lines couldn’t join

because of differences in gauges

• Gauges: width of a railroad track

Improvements to railroads

• 1886: railroads in the south adopt northern gauges – (13,000 miles of track change)

• Railroads now create a network• network: system of connected lines– Shipping: freight cars become

universal • shipper pays only 1 fare for whole trip

Westinghouse Air Brake

• 1869, allows locomotive engineer to stop all railroad cars at once. – Increases safety– Allows longer trains– Allows faster trains

Pullman Sleeping Car• Cars with convertible benches for sleeping &

lavatories

• Dining cars• Waiters and conductors to help passengers