Monday, February 28, 2011

The Revolution Will be Tweeted and Its News Feed Will be Updated

The big reason for the revolution to grow large in Egypt was cencorship.  But this wasn't any old fashioned burning of books but was a modern version of silencing information.  Protesters had begun to protest in the streets and the government was none too happy. 
The simple solution for the government?  Kill the internet and all other information gaining systems i.e. land lines and wireless providers.  Before the cencorship people became hysterical and some last minute pleas went out through the web to ask for help in the great battle for their freedom. 

There are some interesting and practical items here that are going to be used to further the revolution.

1.  goggles - these could be used to protect from tear gas that the government forces use against protesters
2.  a rose - this could be a symbol to show that these people are normal people and want to extend their hands out for the love and support of others in other places
3.  a pot's lid - i assume that this is used as a sheild to defend from attacks from the suppressive forces of the government who most likely have batons and what not
4.  spray paint - I assume that this will be used to tag the buidling and area around the protest to show the words and ideas of the protesters
5.  sneakers - these will probably be used to run away and avoid the suppressive forces and continue the protesting

Content is King

 One career I really want to follow in life is a combination of physics and engineering.  Both fascinate me in the ideas to learn about and the things to make using the knowledge from both.  I personally want to make a robotic hand in the very near future.  Here's a picuture of a model that is close to what I want mine to turn out like:



I know of an organization called FIRST robotics which I participate in with the school robotics club and it has its own blog to convey information about what it stands for, updates on recent robotics, and information for the competition season which it holds once a year.

Thursday, February 17, 2011

Activity 3.1.1 Inputs and Outputs

5. Unchecked 0 No Voltage
6. Checked 1 Yes Voltage
7. It switched to the oposite. Its always on until you turn it off by pushing the switch and holding it down.
9. 43-5000
11. 1521
12. 1360
13. You are able to make the motor and buzzer go either faster or slower
14. You can switch the wiring connections to change the directions of the current.
15. The magbets turn on the reed switch
16. The reed switch behave open.
18. The photoresistor sends a verying aount of signal depending on how close the lamp is
19. When the phototransistor is exposed to the lamps light it closes the circut turning it on.
20. The phototransistor will normally always be open unless it has light.
21. It can be used as a closed digital input if constantly exposed to light.

Conclusion
1. It shows the static state of the 3 connections and what connections are closed or open.
2. A computer will constantly check the voltage every micro second and average out the values be it high or low and give you a verying value. Ex. 5000 then 0000 would yield 2500.
3. As the resistor heats up it excite the electrons and makes it harder to send electrons through that excited secction

Tuesday, February 1, 2011

Basic Units

L = meters

t = seconds

m = kg

a = meters/second/second (direction is relevant)

v = meters/second (direction is relevant)

density = mass/volume (kg/m*m*m)

gravity = 9.8 meters/second/second

F = mass x acceleration

E = joules

P = joules/second

Survival at Sea Game

We were given a situation:  our boat had sunk and were were in a life raft.  We have fifteen items that are salvageable that we have to rank from most important to least important.

Here is my prioritized list:

  1. water
  2. radio
  3. rations
  4. chocolate
  5. rope
  6. fishing kit
  7. mirror
  8. mosquito netting
  9. opaque plastic sheeting
  10. sextant
  11. petrol/oil mixture
  12. shark repellent
  13. rum
  14. floating seat cushion
  15. map of North Atlantic
My top two choices are water and the radio as all humans need water and the radio could be used to broadcast and receive messages.

I had a hard time determining whether or not petrol would be of any use to us and decided that over all it was not but potentially had some uses in the long run for instance boiling water.

My group only ranked a few things similarly.  The only true similarity was that water and food was at the top or near the top of the list.

My choices were similar to the official choices but the official list had the mirror first and the petrol/oil mix second and then water.  My list has water first and then radio and then food.  They seem to think that the mirror and petrol are most important for the use of signaling and although I have similar ideas with them I decided that sustenance is more important in a survival situation.

Tennis Ball Team Building Game

The challenge:
  • you must pass a tennis ball to every member
  • it cannot touch the ground
  • be the fastest team
We decided to roll the ball down our hands like a chute and won the first round.  We then improved it by making a vertical chute in which our fingers would just skim the edge of the ball.

Our plan was executed quite well, we only dropped the ball once and that was in practice.  When getting timed we had the lowest time for both of our designs.

We thought out of the box very well so I think we should do that the same if we were to do this challenge again.

We went quickly through our planning and some members were not involved enough or did not know what the overall plan was so we should take more time to get everyone involved and in the know.