Time

**1. About how long ago did the big bang take place?** The big bang took place about 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?** Yes it does continue to expand and cool to this day. **4. Was there really a big bang?** No one knows for sure, its just a theory. **5. What light elements seem to support the Big Bang Theory?** Hydrogen and helium are thought to support the Big Bang Theory.

**1) What is the current calendar most of the world uses / accepts? Explain who made it and why this is accepted.** The current calendar is the Gregorian calendar. Pope Gregory XIII made the calendar and it is accepted because **2) What is a leap year?** A leap year is a year containing one extra day. **3) List three other types of calendars used and how they set up their calendar (ex. Lunar).** Lunar- It was based on the natural cycles of the Moon. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Solar- Based on the cycle of the seasons. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**4) What is BC?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">The meaning of BC is Before Christ. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**5) What is BCE?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">BCE means Before Common Era. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**6) What is AD?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">The meaning of AD is Anno Domini or Year of our Lord referring to the year of Christ’s birth. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**7) What is CE?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">It refers to Common Era. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**8) What is MYA?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Million Years Ago. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**9) According to the timeline site how many periods of when are there and list time.** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**10) What is an eon, epoch, era, and age?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Eon- the longest division of geological time. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Epoch- a period marked by distinctive character or reckoned from a fixed point or event. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Era- a long period of time. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Age- how long something has existed. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**11) List three ancient calendars.** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**12) List two ancient clocks and how they worked.** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**13) What was a revolution of timekeeping?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">In Europe during most of the Middle Ages technological advancement virtually ceased. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**14) What allows for standard more accurate clocks?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">We have no evidence or record of the working models proceeding these public clocks which were wight-driven and regulated by a verge- and foliot escapement. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**15) What are time zones?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">A time zone is a region on Earth, more or less bounded by lines of longitude, that has a uniform, legally mandated standard time, usually referred to as local time. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**16) What is the prime meridian?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">The meridian at which the longitude is defined to be 0°. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**17) If it’s 10:00 AM in Regina, what time is it in Toronto? London? Moscow? Tokyo? Hawaii?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**18) What is Daylight Saving Time? Do we use this in Saskatchewan?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">It’s the practice of temporarily advancing clocks so that afternoons have more daylight and mornings have less. And no we do not use it in Saskatchewan. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**19) Is there a year zero?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Year zero does not exist. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**20) Are we starting a new decade in 2010 or 2011?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">I’m not sure. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**21) What is linear time?** <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Linear time is the time complexity of an algorithm quantifies the amount of time taken by an algorithm to run as a function of the size of the input to the problem. <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">**22) What is cyclical time?** <span style="color: #ff007e; font-family: Tahoma,Geneva,sans-serif;">Years are named and there are 60 names. Once the sixty names are finished, the next year begins.
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">14000 MYA- Big Bang: Formation of the Universe
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">4600 MYA- Formation of Earth
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">543 MYA – 490 MYA- Cambrian: Explosion of life on earth
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">290 MYA – 248 MYA- Permian: Largest mass extinction
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">245 MYA – 65 MYA- Mesozoic: Age of dinosaurs
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">5 MYA – 2500 BC- Stone Age: The human era
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">70000 BC – 8000 BC- Ice Age: Extinction of Large Animals
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">9000 BC – 4500 BC- Neolithic: First Permanent Settlements
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">3200 BC – 1200 BC- Bronze Age: First Pharaos
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">1200 BC – 332 BC- Iron Age: Start of the Trojan war
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">332 BC – 63 BC- Hellenistic Period
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">63 BC – 476- Roman Period
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">330 – 1453- Byzantine Period
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">476 – 1350- Middle Ages
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">1350 – 1600- Renaissance
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Aztec Calendar Stone
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Stonehenge
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Lunar
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Early water clock- they were stone vessels with sloping sides that allowed water to drip at a nearly constant rate from a small hole near the bottom.
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Sun clocks- Their moving shadows formed a kind of sundial, enabling people to partition the day into morning and afternoon.
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Toronto- 12:00 PM
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">London- 5:00 PM
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Moscow- 8:00 PM
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Tokyo- 1:00 AM
 * <span style="color: #ff007e; display: block; font-family: Tahoma,Geneva,sans-serif;">Hawaii- 6:00 AM

<span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**1) What happened at 12 AM January 1, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">Earth formed from planetary nebula. <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**2) What happened at 4:41 PM February, 25 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">Inferred origin of life (first cell) <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**3) How long of actual time happened between the event in question one and two?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">7000 million years. <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**4) What happen at 3:39 PM September 3, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">First multi-celled organisms (seaweed and algae) <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**5) What happened at 7:40 PM November 21, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">An Ordovician system begins. <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**6) What happened at 1:27PM December 2, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">First sharks. <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**7) What happened at 12:09 PM December 12, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">End of Paleozoic, 96%of all life on Earth perishes. <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**8) What happened at 8:37 PM December 13, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">First Dinosaurs (Eorapter and Saltoposuchus) 937 million years. <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**14) How old is the Earth?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">4.6 billion years.
 * 9) What happened at 7:52 PM December 26, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">End of Mesozoic, probably meteor or comet impact.
 * 10) What happened at 5:18 PM December 31, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">Oldest human like ancestors (hominids) <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">**11) What happened at 11:48 PM December 31, 2004?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">First modern man, Homo sapiens.
 * 12) What happened at 12:00 AM January 1, 2005?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">World War II
 * 13) How long of actual time happened between the event in question 11 and 12?**
 * 15) On the chart how many years are represented by one second?** <span style="color: #38e5b1; display: block; font-family: Tahoma,Geneva,sans-serif; font-size: 110%;">1 second equals about 146 years.