January 27, 2010 (#92)Need: Books/Notebooks

Continue to Build a better understanding of Electric and Magnetic Field behaviors

Connection between Magnetic Fields and the Earth as well as Technology

Describe the relationships among the three components of electricity.

For those of you that find this topic interesting, at the conclusion of today's lesson, there will be some extensions you can pursue in learning more about Magnetic Fields, Reversals, and maybe, a touch of SciFi regarding 2012.

Yearbook SurveyModern Marvels Renewable Energy

P5Bell Work QuestionsConnecting Renewable Energy to

Magnetic Fields▪ History of the Earth – Paleomagnetism FINISH ▪ Technology – Cracking the Code (Binary Code)

How are Magnets MadeMagnetic Fields Continued Continue Who killed the electric car? Work on Building Layer For those done, National Geographic Article. Read, Review,

Summarize, Comment

Enjoy today’s Problem of the Day Video!

Observe any and all of the jobs presented in the video

What are the benefits to this type of renewable energy?

What are the disadvantages?What countries seem to be more

interested in them?

Looking at the most recent video, what are your thoughts on this type of renewable energy?

Are there any areas in the USA that you think would/could benefit from such a Renewable Energy Source?

C.B.

D.

A.E.

Binary Code. First introduced in the 11th century –

Shau Yong-philosopher (Not used in math)

200BC – Indian writer Pingala-develops binary numeral system

1605 – Francis Bacon created a system where letters of alphabet could be assigned binary digits

Late 1930’s, George Stibitz, working on the “Model K” computer, which calculated using binary addition.

First, remember that the code (program) originally worked with switches, either turned on (1) or off (0). Only those two figures are used.

So, to begin, we will count, and in counting, we will start with Zero (0).

Number O = Binary Code ONumber 1 = Binary Code 1Pretty hard huh?

Continue on…Number O = Binary Code 0Number 1 = Binary Code 1Number 2 = Binary Code 10Number 3 = Binary Code 11Number 4 = Binary Code 100Number 5 = Binary Code 101Number 6 = Binary Code 110Number 7 = Binary Code 111Number 8 = Binary Code 1000Number 25 = Binary Code 11001

Using a Hexidecimal and Decimal System combined with Binary we can get letters

Hex Dec Binary0 0 00001 1 00012 2 00103 3 00114 4 01005 5 01016 6 01107 7 01118 8 10009 9 1001A 10 1010B 11 1011C 12 1100D 13 1101E 14 1110F 15 1111

NanotechnologyThe biggest science initiative

since the Apollo program

10 GB2001

20 GB2002

40 GB2004

80 GB2006 160 GB

2007

Example: Data storage capacity of the iPod

Hard driveMagnetic data storage

Uses nanotechnology!

Hard Disk Drives - a home for bits

Hitachi

Magnetic Data StorageA computer hard drive stores your data magnetically

Disk

N S

direction of disk motion

“ Write”Head

0 0 1 0 1 0 0 1 1 0 _ _

“ Bits” ofinformation

NS

“ Read”Head

Signalcurrent

Improving Magnetic Data Storage Technology

• The UMass Amherst Center for Hierarchical Manufacturing is working to improve this technology

Granular Media

PerpendicularWrite Head

Soft Magnetic UnderLayer (SUL)

coil

Y. Sonobe, et al., JMMM (2006)

1 bit

• CHM Goal: Make "perfect" mediausing self-assembled nano-templates• Also, making new designs for storage

QuickTime™ and aTIFF (LZW) decompressor

are needed to see this picture.

10 GB2001

20 GB2002

40 GB2004

80 GB2006 160 GB

2007

So, how does Apple get more storage?

Hard driveMagnetic data storage

Uses nanotechnology!

By Making the Magnets Smaller!!

Konarka

Benefit: Sun is an unlimited source of electronic energy.

Using the Homemade “Reader Heads,” Walk around the room with a partner or two and collect answers to questions that have answers given in binary code. Most answers will be in Number form.

Use the code on the top of the reader, and collect answers to your papers.

There are only 10 questions.

So, if you needed to know the Binary Number for say…

2010, could you figure it out?

Would it take a long time?

Is there an easier way?

First, start off by figuring out powers of 2

20 = 121 = 222 = 423 = 824 = 1625 = 3226 = 64

27 = 128

Secondly, we will create an equation that we can build on to, as well as modify.

Binary Number 1001 = 9Place holder 3210

[_ x 23] + [_ x 22] + [_ x 21] + [_ x 20]

[1 x 23] + [0 x 22] + [0 x 21] + [1 x 20]

[8] + [0] + [0] + [1] = 9

Try to figure out your birthday Year!

Bonus question at bottom of paper.

Notice the name on the poster to the right

Notice that guy and his name, that would be 1992, 8th Grade!

Please check out the teams website for further studies and ideas regarding the chance that the planet’s magnetic field is in the process of reversing, or just preparing to strengthen again.

http://homeworkteam71.wikispaces.com/

Video on How Magnets Are made