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review 2018-11-06 09:31
{ s(Q|X) = -K SUM(p*ln(p)) }: "Symbols, Signals and Noise" by J. R. Pierce
An Introduction to Information Theory: Symbols, Signals and Noise - John Robinson Pierce



(Original Review, 1980-12-05)



Final answer to question, "How many joules to send a bit?"

The unit of information is determined by the choice of the arbitrary scale factor K in Shannon's entropy formula:

{ s(Q|X) = -K SUM(p*ln(p)) }

If K is made equal to 1/ln(2), then S is said to be measured in "bits" of information.

 

 

 

 

If you're into stuff like this, you can read the full review.

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review 2018-09-08 03:49
Math Curse
Math Curse - Jon Scieszka,Lane Smith

The book is about a young person that is told in her math class that math is used in everyday life. The student then goes home and wakes up the next day with all kinds of math problems in her head. The story continues throughout her day, explaining how math works in her life each day. Math Curse is a great book to read in a math class at the first of the year. Most students think that math is not needed beyond the classroom and they do not realize they use math already in their everyday lives. 

Before reading this book, have students take a poll on who thinks that math is important outside the classroom. The students could even have a short debate if there are others that disagree with the majority. After reading the book, have the students come up with different ways they personally use math in their everyday lives. 

 

Grade 2-5

Book Level:

Lexile 560L

Accelerated Reader 3.7 

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text 2018-07-24 17:06
Reading Habits Book Tag!

1. Do you have a certain place in your home for reading? - Yeah, my bed or my couch! Best lighting in my house so I can keep reading longer until I absolutely have to get up to turn on a light.

2. Bookmark or random piece of paper? - Both, but I try to use a bookmark if I can.

3. Can you just stop reading or do you have to stop reading after a chapter / certain number of pages? - I have to set a page goal, usually to the next hundred.

4. Do you eat or drink while reading? - If it’s an ebook, yes. I would never eat and read a physical book at the same time. I don’t trust myself like that.

5. Multitasking: music or TV while reading? - Music! I like to pull up long playlists and read till they’re done.

6. One book at a time or several at once? - Both. Usually several, but I’ll drop other books for an important one.

7. Reading at home or everywhere? - Everywhere!

8. Reading out loud or silently in your head? - Silently in my head.

9. Do you read ahead or even skip pages? - Nope! Sometimes I skim but then I feel bad and read the passage fully.

10. Barking the spine or keeping it like new? - Like new!

11. Do you write in your books? - Absolutely not.

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review 2018-05-22 20:57
Una bella introduzione :)
Archaeology: A Very Short Introduction - Paul G. Bahn

“You can release all kinds of demons lurking inside you when you are allowed to burn down a house, or attack a colleague with a bronze sword, bash hell out of a piece of stone, or smear cowdung over a wall or klin, and call it ‘Science’.”

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text 2018-05-05 18:36
Reading progress update: I've read 10 out of 224 pages.
Introduction to Topology - Bert Mendelson

A book by a mathematician for mathematicians but it does to some extent appeal to a person's intuition. On the other hand it has that thing where a zillion symbols and axioms are introduced in the space of about 2p. You folks ever heard of a table so people with naff memories (like me) can look them up easily? Jury's out as to whether this is gonna work for me or not. The concept of a metric is explained well, at least; it's just a quantitative concept of distance.

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