christmas andscience paloma ramírez
TRANSCRIPT
CHRISTMAS AND SCIENCE
Do you know the relationship
between Christmas and Science?
1. Star of Bethlehem
One event that has interested scientists through the ages is the Star of Bethlehem. Is there a scientific explanation for what the Magi saw?
What is the Star of Bethlehem?
The light from the star served as a guide to the shepherds and the Three Wise Men (the Magi) to Bethlehem.
Scientific possibilities of the Star
METEORS
COMETS
SUPERNOVAE
CONJUNCTION OF PLANETS
Possible explanations
2. Santa Claus at nearly the speed of light
Santa has a big delivery problem!!
A little bit of Maths...
2 billion children in the world
2.5 children per household
800 homes around the world
160 million kilometers
Thanks to the rotation of Earth, Santa has more
time than children might initially
think…
3. The Winter Solstice
The shortest day of the year
The farther north you go, less hours of daylight you will have.
Midnight Sun
4. The Christmas Tree
Evergreen coniferous tree
Types of trees: FIR PINE CEDAR SPRUCE
Do you know these trees?
Let's see them closer!
5. Snowflakes
Snowflakes form when water vapor in the air cools and condenses into drops of water
Each drop freezes into a tiny ice crystal
The temperature and amount of water vapor determines the shape of snow crystals
Beautiful, Incredible, Amazing...
NOW, IT'S TIME TO WORK...
MERRY CHRISTMAS AND A HAPPY NEW YEAR!