- Attachments : URL: http://htwins.net/scale2
- Sonoma State University, 3-5-12, Cosmic Voyage about the scale of the Universe from the very smallest to the very biggest.
- This is an animation that you control . It allows you to see the size of objects in power of 10 meters and the distances to reach them.
- To quickly learn the scales of 10, 10^0 is 1 meter, 10^2 is 100 meters, and 10^3 is 1,000 meters or one kilometer. The power is the number of zeros following the 1.
- The animation starts with the hula hoop that is one meter in diameter, 10^0 = 1 meter.
- The a circle of 30 people holding hands around the hula hoop is a circle 10 meters in diameter, 10^1 = 10 meters.
- 10^6 meters is the size of California
- 10^7 meters is the size of the Earth.
-
- 10^13 is the size of the Solar System
-
- 10^16 is the distance light travels in one year, one lightyear.
-
- 10^22 meters is the distance the Earth has traveled circling the Sun for 4.5 billion years.
-
- 10^26 is the farthest image of the Hubble Telescope Deep Field. It is the farthest image humans have seen to date.
- 10^27 is the distance to the edge of the Observable Universe. That is as far as light has traveled for 13.75 billion years since the Big Bang.
- 4.35 * 10^26 meters is the distance the Observable Universe is today, but, we can not see it because light has not reached us yet. The Universe has been expanding during the time the light of the Observable
Universe is traveling towards us. Astronomers expect the Universe is 1,000’s of times bigger than that but we just do not know how big the entire Universe really is.
- Now, let’s go back to the hula hoop and go the opposite direction dividing by the power’s of 10. 10^-2 = 0.01 meters = 1 centimeter the size of an ant.
- 10^-5 is the size of a white blood cell.
- 10^-6 is smallest thing we can see with an optical microscope. Beyond this we need to use an electron microscope.
-
- 10^-8 is DNA
-
- 10^-10 is an atom
-
- 10^-14 is an atomic nucleus
-
- 10^-19 is the Bottom Quark
-
- 10^-35 is the Planck length which is the smallest dimension possible. It is the size of Quantum Foam of space and the size of a string in String Theory. Note there is a much bigger gap in the stuff we can see on the small scale.
- Show the kids how to play around with the internet animation. It is extremely educational and will help them in school to come up with examples of the scales of things. 2 meters is the size of us humans and it is interesting that we are right in the middle of the scale of the very smallest to the very biggest. How did that happen? An announcement will be made shortly, stay tuned.
---------------------- ------------------------------------------------------------------
RSVP, please reply with a number to rate this review: #1- learned something new. #2 - Didn’t read it. #3- very interesting. #4- Send another review #___ from the index. #5- Keep em coming. #6- I forwarded copies to some friends. #7- Don‘t send me these anymore! #8- I am forwarding you some questions? Index is available with email and with requested reviews at http://jdetrick.blogspot.com/ Please send feedback, corrections, or recommended improvements to: jamesdetrick@comcast.net.
or, use: “Jim Detrick” www.facebook.com, or , www.twitter.com.
707-536-3272, Tuesday, March 6, 2012
No comments:
Post a Comment