EP 4, 5, and 6
Fill in Data Table #2: Observation of Physical and Chemical Changes p. 29
Answer questoins: 1b, 1c, 3, 4, 5, 6,
Sunday, May 31, 2009
Reminder: Hair cut check might be on MONDAY June 1
just so you know, they might be cutting your hair on monday instead of tuesday so be ready...
Thursday, May 28, 2009
Wednesday, May 27, 2009
My Baby was Born May 23, 2009
Mother and daughter are home now and doing fine.
changes in schedule are noted on the calendar as I was out on May 22 and May 25
Saturday, May 23, 2009
Born a Little Girl
Mr. Gary will be out on Monday May 25, due to the birth and subsequent release from the hospital of his lovely wife and daughter. We regret the inconvenience, but we will press on with assignments and postpone scheduled labs for this week.
Thursday, May 21, 2009
Chem Bonus--read the article and write a 50 word summary and thoughts
BBC NEWS
How to fit 300 DVDs on one disc
A new optical recording method could pave the way for data discs with 300 times the storage capacity of standard DVDs, Nature journal reports.
The researchers say this could see a whopping 1.6 terabytes of information fit on a DVD-sized disc.
They describe their method as "five-dimensional" optical recording and say it could be commercialised.
The technique employs nanometre-scale particles of gold as a recording medium.
Researchers at Swinburne University of Technology in Australia have exploited the particular properties of these gold "nano-rods" by manipulating the light pointed at them.
The team members described what they did as adding three "dimensions" to the two spatial dimensions that DVD and CD discs already have.
They say they were able to introduce a spectral - or colour - dimension and a polarisation dimension, as well as recording information in 10 layers of the nano-rod films, adding a third spatial dimension.
The scientists used the nanoparticles to record information in a range of different colour wavelengths on the same physical disc location. This is a major improvement over traditional DVDs, which are recorded in a single colour wavelength with a laser.
Also, the amount of incoming laser light absorbed by the nanoparticles depends on its polarisation. This allowed the researchers to record different layers of information at different angles.
The researchers thus refer to the approach as 5-D recording. Previous research has demonstrated recording techniques based on colour or polarisation, but this is the first work that shows the integration of both.
As a result, the scientists say they have achieved unprecedented data density.
“ It's not just elegant - there are a lot of experiments that are elegant - it's relatively straightforward ”
Tom Milster University of Arizona
Their approach used 10-layer stacks composed of thin glass plates as the recording medium. If scaled up to a DVD-sized disk, the team would be able to record 1.6 terabytes - that is, 1,600 gigabytes - or over 300 times the quantity stored on a standard DVD.
Significant improvements could be made by thinning the spacer layers and using more than two polarisation angles - pushing the limits to 10 terabytes per disc and beyond, the researchers say.
Bit by bit
Recent efforts based on holography have shown that up to 500 Gb could potentially be stored on standard DVD-sized disks.
Holographic methods take all of the information to be recorded and encode it in the form of a graph showing how often certain frequencies arise in it.
That means that the recording process is a complex, all-at-once, all-or-nothing approach that would be difficult to implement on an industrial scale.
By contrast, 5-D recording is "bit-by-bit", like current CD and DVD writing processes in that each piece of information is read sequentially.
That is likely to mean that recording and read speeds would be comparatively slow, but the approach would be easier to integrate with existing technology.
"The optical system to record and read 5-D is very similar to the current DVD system," says James Chon, a co-author on the research.
"Therefore, industrial scale production of the compact system is possible."
Now that the method has been demonstrated in custom-made multi-layer stacks, the team is working in conjunction with Samsung to develop a drive that can record and read onto a DVD-sized disc.
Dr Chon says that the material cost of a disc would be less than $0.05 (£0.03), but there are a number of advantages in moving to silver nano-rods that would bring that cost down by a factor of 100.
For optical data storage expert Tom Milster, at the University of Arizona, the beauty of the approach is in its simplicity.
"It's not just elegant - there are a lot of experiments that are elegant - it's relatively straightforward," he told BBC News.
For the moment, Dr Milster says, the equipment needed to write the data would make a commercial system expensive. However, that has not stopped the development of optical storage solutions in the past.
"For example, a Blu-ray player is not an easy system to realise; they've got some wonderful optics in there," Dr Milster said. "People thought that would be pretty difficult to do, but others managed to do it."
Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/science/nature/8060082.stm
Published: 2009/05/20 18:47:48 GMT
© BBC MMIX
How to fit 300 DVDs on one disc
A new optical recording method could pave the way for data discs with 300 times the storage capacity of standard DVDs, Nature journal reports.
The researchers say this could see a whopping 1.6 terabytes of information fit on a DVD-sized disc.
They describe their method as "five-dimensional" optical recording and say it could be commercialised.
The technique employs nanometre-scale particles of gold as a recording medium.
Researchers at Swinburne University of Technology in Australia have exploited the particular properties of these gold "nano-rods" by manipulating the light pointed at them.
The team members described what they did as adding three "dimensions" to the two spatial dimensions that DVD and CD discs already have.
They say they were able to introduce a spectral - or colour - dimension and a polarisation dimension, as well as recording information in 10 layers of the nano-rod films, adding a third spatial dimension.
The scientists used the nanoparticles to record information in a range of different colour wavelengths on the same physical disc location. This is a major improvement over traditional DVDs, which are recorded in a single colour wavelength with a laser.
Also, the amount of incoming laser light absorbed by the nanoparticles depends on its polarisation. This allowed the researchers to record different layers of information at different angles.
The researchers thus refer to the approach as 5-D recording. Previous research has demonstrated recording techniques based on colour or polarisation, but this is the first work that shows the integration of both.
As a result, the scientists say they have achieved unprecedented data density.
“ It's not just elegant - there are a lot of experiments that are elegant - it's relatively straightforward ”
Tom Milster University of Arizona
Their approach used 10-layer stacks composed of thin glass plates as the recording medium. If scaled up to a DVD-sized disk, the team would be able to record 1.6 terabytes - that is, 1,600 gigabytes - or over 300 times the quantity stored on a standard DVD.
Significant improvements could be made by thinning the spacer layers and using more than two polarisation angles - pushing the limits to 10 terabytes per disc and beyond, the researchers say.
Bit by bit
Recent efforts based on holography have shown that up to 500 Gb could potentially be stored on standard DVD-sized disks.
Holographic methods take all of the information to be recorded and encode it in the form of a graph showing how often certain frequencies arise in it.
That means that the recording process is a complex, all-at-once, all-or-nothing approach that would be difficult to implement on an industrial scale.
By contrast, 5-D recording is "bit-by-bit", like current CD and DVD writing processes in that each piece of information is read sequentially.
That is likely to mean that recording and read speeds would be comparatively slow, but the approach would be easier to integrate with existing technology.
"The optical system to record and read 5-D is very similar to the current DVD system," says James Chon, a co-author on the research.
"Therefore, industrial scale production of the compact system is possible."
Now that the method has been demonstrated in custom-made multi-layer stacks, the team is working in conjunction with Samsung to develop a drive that can record and read onto a DVD-sized disc.
Dr Chon says that the material cost of a disc would be less than $0.05 (£0.03), but there are a number of advantages in moving to silver nano-rods that would bring that cost down by a factor of 100.
For optical data storage expert Tom Milster, at the University of Arizona, the beauty of the approach is in its simplicity.
"It's not just elegant - there are a lot of experiments that are elegant - it's relatively straightforward," he told BBC News.
For the moment, Dr Milster says, the equipment needed to write the data would make a commercial system expensive. However, that has not stopped the development of optical storage solutions in the past.
"For example, a Blu-ray player is not an easy system to realise; they've got some wonderful optics in there," Dr Milster said. "People thought that would be pretty difficult to do, but others managed to do it."
Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/science/nature/8060082.stm
Published: 2009/05/20 18:47:48 GMT
© BBC MMIX
Monday, May 18, 2009
EP 4 homework for May 18 week
homework #1 Page 108 # 11, 14
Page 112 # 17, 18
Page 113 #19, 20
Page 116 # 21, 22
Page 117 # 23, 24
Page 112 # 17, 18
Page 113 #19, 20
Page 116 # 21, 22
Page 117 # 23, 24
EP 5 Test is 5/25 for 5/2 and 5/26 for 5/1
due to review time required, we're pushing back the Tests for Ep 5/1 and 5/2 on Chapter 14
ep 6 test will be in two weeks
ep 6 test will be in two weeks
Friday, May 15, 2009
BONUS and Homework Reminders week of May 22
EP 6 Hw #2 Ch 22 #26-29
EP 5 Read Ch 14
EP 4 Read Ch 4
Bonus:
1. what is vanillin?
2. Find me a website link with images of the current topic we're studying. For example, EP 6 would find me images of hydrocarbons and describe it to me in 25 words or more in your notebook.
EP 5 Read Ch 14
EP 4 Read Ch 4
Bonus:
1. what is vanillin?
2. Find me a website link with images of the current topic we're studying. For example, EP 6 would find me images of hydrocarbons and describe it to me in 25 words or more in your notebook.
Thursday, May 14, 2009
Ep 6 Schedule of Topics for YEAR
Summer 2009
Notebook and workbook check
Ch 22 Hydrocarbon Compounds
Unsaturated Hydrocarbons
Isomerism
Midterm July
Ch 22. Hydrocarbon Rings
Hydrocarbons from the Earth
Ch 23 Functional Groups and Organic Reactions
Introduction to Functional Groups
Alcohols and Ethers
Carbonyl Compounds
Polymerization
Ch 19 Acids and Bases
Acid-Base Theories
Hydrogen Ions and Acidity
Strengths of Acids and Bases
Salts in Solution
Final September
Ch 20 Oxidation-Reduction Reactions
The meaning of Oxidation and reduction
Oxidation Numbers
Balancing Redox reactions
Ch 21 Electro chemistry
Electrochemical cells
Half-cells and cell potentials
Electrolytic Cells
Second Semester
Review
Ch 10 Chemical Quantities
The Mole
Mole-Mass and Mole-Volume Relationships
Percent Composition and Chemical Formulas
Ch 11 Chemical Reactions
Describing Chemical Reactions
Types of Chemical Reactions
Reactions in aqueous Solutions
Ch 12 Stoichemistry
Chemical Calculations
Limiting Reagents and Percent Yield
Notebook and workbook check
Ch 22 Hydrocarbon Compounds
Unsaturated Hydrocarbons
Isomerism
Midterm July
Ch 22. Hydrocarbon Rings
Hydrocarbons from the Earth
Ch 23 Functional Groups and Organic Reactions
Introduction to Functional Groups
Alcohols and Ethers
Carbonyl Compounds
Polymerization
Ch 19 Acids and Bases
Acid-Base Theories
Hydrogen Ions and Acidity
Strengths of Acids and Bases
Salts in Solution
Final September
Ch 20 Oxidation-Reduction Reactions
The meaning of Oxidation and reduction
Oxidation Numbers
Balancing Redox reactions
Ch 21 Electro chemistry
Electrochemical cells
Half-cells and cell potentials
Electrolytic Cells
Second Semester
Review
Ch 10 Chemical Quantities
The Mole
Mole-Mass and Mole-Volume Relationships
Percent Composition and Chemical Formulas
Ch 11 Chemical Reactions
Describing Chemical Reactions
Types of Chemical Reactions
Reactions in aqueous Solutions
Ch 12 Stoichemistry
Chemical Calculations
Limiting Reagents and Percent Yield
Ep 5 Schedule of Topics for YEAR
Summer 2009
Ch 14 Behavior of gases, properties of gases, the Gas Laws, Ideal Gases, and Gases Mixtures and Movement
Midterm July 27
Ch 15 Water and Aqueous Systems
Water and its properties
Homogenous Aqueous Systems
Heterogenous Aqueous Systems
Ch 16 Solutions
Properties of Solutions
Concentrations of Solutions
Colligative Properties of Solutions
Calculations involving colligative properties
Final September
Ch 17 ThermoChemistry
The flow of Energy—Heat and Work
Measuring and Expressing Enthalpy Changes
Heat in Changes of State
Calculating Heats of Reaction
Ch 18 Reaction Rates and Equilibrium
Rates of Reaction
Reversible Reactions and Equilibrium
Solubility Product
Calculating Entropy and Free Energy
The progress of Chemical Reactions
Second semester
Ch 22 Hydrocarbon Compounds
Unsaturated Hydrocarbons
Isomerism
Hydrocarbon Rings
Hydrocarbons from the Earth
Ch 23 Functional Groups and Organic Reactions
Introduction to Functional Groups
Alcohols and Ethers
Carbonyl Compounds
Polymerization
Ch 14 Behavior of gases, properties of gases, the Gas Laws, Ideal Gases, and Gases Mixtures and Movement
Midterm July 27
Ch 15 Water and Aqueous Systems
Water and its properties
Homogenous Aqueous Systems
Heterogenous Aqueous Systems
Ch 16 Solutions
Properties of Solutions
Concentrations of Solutions
Colligative Properties of Solutions
Calculations involving colligative properties
Final September
Ch 17 ThermoChemistry
The flow of Energy—Heat and Work
Measuring and Expressing Enthalpy Changes
Heat in Changes of State
Calculating Heats of Reaction
Ch 18 Reaction Rates and Equilibrium
Rates of Reaction
Reversible Reactions and Equilibrium
Solubility Product
Calculating Entropy and Free Energy
The progress of Chemical Reactions
Second semester
Ch 22 Hydrocarbon Compounds
Unsaturated Hydrocarbons
Isomerism
Hydrocarbon Rings
Hydrocarbons from the Earth
Ch 23 Functional Groups and Organic Reactions
Introduction to Functional Groups
Alcohols and Ethers
Carbonyl Compounds
Polymerization
Tuesday, May 12, 2009
Ep 4 Schedule of Topics for YEAR
Important dates:
Midterm Exam 7/20-23
Final Exam Sept 28-30
Grading
20% behavior/participation
50% tests/quizzes
30% Homework/classwork
Summer—ch 1-3 except Density
May-June-July for the First Midterm
Ch 4 Defining the Atom
Structure of the Atom
Distinguishing among Atoms
Ch 5 Models of the Atom
Electron Arrangement in Atoms
Physics and the Quantum Mechanical model
Ch 6 Periodic Table Organizing the Elements
Classifying the Elements
Periodic Trends
July-August-September
Ch 7 Ions
Ionic Bonds and ionic compounds
Bonding in metals
Ch 8 Covalent Bonding
Molecular compounds
The nature of Covalent Bonding
Bonding Theories
Polar Bonds and Molecules
Ch 9 Chemical Names and Formulas
Naming and writing formulas covered in Ch 7 and 8
Naming and writing formulas for acids and bases
Laws of naming
November-December-January-February
Ch 10 Chemical Quantities
The Mole
Mole-Mass and Mole-Volume Relationships
Percent Composition and Chemical Formulas
Ch 11 Chemical Reactions
Describing Chemical Reactions
Types of Chemical Reactions
Reactions in aqueous Solutions
Ch 12 Stoichemistry
Chemical Calculations
Limiting Reagents and Percent Yield
Midterm Exam 7/20-23
Final Exam Sept 28-30
Grading
20% behavior/participation
50% tests/quizzes
30% Homework/classwork
Summer—ch 1-3 except Density
May-June-July for the First Midterm
Ch 4 Defining the Atom
Structure of the Atom
Distinguishing among Atoms
Ch 5 Models of the Atom
Electron Arrangement in Atoms
Physics and the Quantum Mechanical model
Ch 6 Periodic Table Organizing the Elements
Classifying the Elements
Periodic Trends
July-August-September
Ch 7 Ions
Ionic Bonds and ionic compounds
Bonding in metals
Ch 8 Covalent Bonding
Molecular compounds
The nature of Covalent Bonding
Bonding Theories
Polar Bonds and Molecules
Ch 9 Chemical Names and Formulas
Naming and writing formulas covered in Ch 7 and 8
Naming and writing formulas for acids and bases
Laws of naming
November-December-January-February
Ch 10 Chemical Quantities
The Mole
Mole-Mass and Mole-Volume Relationships
Percent Composition and Chemical Formulas
Ch 11 Chemical Reactions
Describing Chemical Reactions
Types of Chemical Reactions
Reactions in aqueous Solutions
Ch 12 Stoichemistry
Chemical Calculations
Limiting Reagents and Percent Yield
Monday, May 11, 2009
Friday, May 8, 2009
Reminders: Workbooks and notebooks CHECK
If I didn't check your workbooks and notebooks, it's time for a check on Wednesday. you may use your summer workbook for the school year.
EP 6 read up on Ch 22 Hydrocarbons
EP 5 read up on ch 14 gas laws
ep 4 read ch 4 physical and chemical properties
don't you love school?
EP 6 read up on Ch 22 Hydrocarbons
EP 5 read up on ch 14 gas laws
ep 4 read ch 4 physical and chemical properties
don't you love school?
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About Me
- Gary Hi10spro Sakuma
- I have played for 25 years and coached for the last 17 years--certified United States Professional Tennis Association Professional One--worked for Punahou Schools-voted the #1 Sports School in the United States, as a Program Supervisor, in charge of coaching the High Performance Players as well as coordinating programs for K-12 and Tennis Pro Education.