Time

=**The Big Bang Theory Assignment:**=

__Part 1:__ 1) About how long ago did the big bang take place? Well, according to the standard theory, our universe sprang into existence around 13.7 billion years ago!

2) What is a black hole? Black holes are areas of intense gravitational pressure.

3) Does the universe continue to expand? It does continue to expand and cool to this day and we are inside of it: incredible creatures living on a unique planet, circling a beautiful star clustered together with several hundred billion other stars in a galaxy soaring through the cosmos, all of which is inside of an expanding universe that began as an infinitesimal singularity which appeared out of nowhere for reasons unknown. This is the Big Bang Theory.

4) Was there really a big bang? They tend to imagine a giant explosion. However, experts say that there was no explosion; there was (and continues to be) an expansion.

5) What light elements seem to support the Big Bang Theory?
 * First of all, we are reasonably certain that the universe had a beginning.
 * Second, galaxies appear to be moving away from us at speeds proportional to their distance. This is called "Hubble's Law," named after Edwin Hubble (1889-1953) who discovered this phenomenon in 1929. This observation supports the expansion of the universe and suggests that the universe was once compacted.
 * Third, if the universe was initially very, very hot as the Big Bang suggests, we should be able to find some remnant of this heat. In 1965, Radioastronomers Arno Penzias and Robert Wilson discovered a 2.725 degree Kelvin (-454.765 degree Fahrenheit, -270.425 degree Celsius) Cosmic Microwave Background radiation (CMB) which pervades the observable universe. This is thought to be the remnant which scientists were looking for. Penzias and Wilson shared in the 1978 Nobel Prize for Physics for their discovery.
 * Finally, the abundance of the "light elements" Hydrogen and Helium found in the observable universe are thought to support the Big Bang model of origins.

__Time Keep on Slippin__ 1) What is the current calendar most of the world uses / accepts? Explain who made it and why this is accepted. 2) What is a leap year? 3) List three other types of calendars used and how they set up their calendar (ex. Lunar). 4) What is BC? "BC" means Before Christ.

5) What is BCE? "BCE" means Before Common Era.

6) What is AD? "AD" means Anno Domini or Year of our Lord referring to the year of Christ's birth.

7) What is CE? "CE" is a recent term, refers to Common Era, and is used in place of A.D.

8) What is MYA? "MYA"means million years ago.

9) According to the timeline site how many periods of when are there and list time. There are 22: 14000 MYA - Big Bang: Formation of the Universe

4600 MYA - Formation Earth

543 MYA - 490 MYA - Cambrian: Explosion of Life on Earth

290 MYA - 248 MYA - Permian: Largest Mass Extinction

245 MYA - 65 MYA - Mesozoic: Age of Dinosaurs

65 MYA - Cenozoic: Age of Mammals

5 MYA - 2500 BC - Stone age: The Human Era

70000 BC - 8000 BC - Ice age: Extintion of Large Mammals

9000 BC - 4500 BC - Neolithic: First Permanent Settlements

3200 BC - 1200 BC - Bronze age: First Pharaos

1200 BC - 332 BC - Iron age: Start of the Trojan War

332 BC - 63 BC - Hellenistic period

63 BC - 476 - Roman period

330 - 1453 - Byzantine period

476 - 1350 - Middle Ages

1350 - 1600 - Renaissance

1500 - 1600 - Reformation

1600 - 1800 - Enlightenment

1750 - 1900 - Industrial Revolution

1900 - 2000 - 20th Century

2000 - 2099 - 21st Century

2012 - Future

10) What is an eon, epoch, era, and age? Eon- the longest division of geological time. Epoch- a particular period of history. Era- time period in history. Age- period of animate existence.

11) List three ancient calendars: Aztec calendar stone Egyptian Calendar, and Stonehenge.

12) List two ancient clocks and how they worked. Sun clock: Their moving shadows formed a kind of sundial, enabling people to partition the day into morning and afternoon Water clock : bowl-shaped containers designed to slowly fill with water coming in at a constant rate. Markings on the inside surfaces measured the passage of "hours" as the water level reached them.

13) What was a revolution of timekeeping? Accurate Mechanical Clocks to Quartz clocks.

14) What allows for standard more accurate clocks? Atoms allow for standard more accurate clocks.

15) What are time zones? A time zone is a region on Earth that has a uniform standard time for legal, commercial, and social purposes.

16) What is the prime meridian? The prime meridian is the vertical line that marks the zero degree longitude measurement on the globe of Earth. The line intersects the latitude lines that are horizontal. Not every globe has the same prime meridian measurement, but most measure the earth’s prime meridian as a line that passes through England, France, Spain, Togo, and down to Antarctica.

17) If it’s 10:00 AM in Regina, what time is it in Toronto? London? Moscow? Tokyo? Hawaii? Toronto- 11:00 AM

London- 4:00 AM

Moscow- 8:00 PM

Tokyo- 1:00 AM

Hawaii- 6:00 AM

18) What is Daylight Saving Time? Do we use this in Saskatchewan? During late Winter we move our clocks one hour ahead and "lose" an hour during the night and each Fall we move our clocks back one hour and "gain" an extra hour No, we don't use daylight saving. Most of Saskatchewan uses Central Standard Time all year round."

19) Is there a year zero? No, there isn't year zero.

20) Are we starting a new decade in 2010 or 2011? 2011, because we start a decade in year 1.

21) What is linear time? It is a major feature of our Western cultural world-view, apparently initiated by Newton some 300 years ago. It portrays time as an absolute physical reality, and says that the passage of time is independent of consciousness. So it doesn't matter what you think, feel, or do, or how you look at time, time doesn't change as a result.

22) What is cyclical time? The time interval between successive appearances of any information that is transmitted periodically.

BONUS QUESTION! In What Steve Miller song does time ‘keep slippin’ into the future’? Fly Like An Eagle.

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