○○○ ahead ⪢⪢
Our first
discovery is one that archeologists know the function of but we can't imagine how the Roman's were able to come up with something so many centuries ahead of its time.
http://qindex.info/i.php?x=11827
○○○ 1962.10.15 ⪢⪢
The United States
discovered the existence of these missiles. President John F. Kennedy and his advosers considered several different strategies ranging from diplomacy to a blockade or even a full-scale invasion of Cuba.
http://qindex.info/i.php?x=20288
• 1643 - 1727 Isaac Newton
Galileo had already
discovered some years prior that the distance traveled by a falling object is represented by a function of time.
Newton wondered how one could calculate the velocity of the object at any particular instance during the fall.
http://qindex.info/i.php?x=5035
• Present Perfect
Scientists say they have found evidence of a giant planet in the solar system. There have only been two true planets
discovered since ancient times. Planets have been predicted before and then were not found.
http://qindex.info/i.php?x=4149
• 03 Rates of Change
Galileo had already
discovered some years prior that the distance traveled by a falling object is represented by a function of time. Newton wondered how one could calculate the velocity of the object at any particular instance during the fall.
http://qindex.info/i.php?x=5034
