Osmosis,Difussion, Sodium-Potassium Pump,Human cellular transport mechanism,.

Learn,Read And Write Mandarin. Good Mandrin Materials For Teachers,Parents and Students.

Apprendre le chinois (Français)
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Learn Mandarin Chinese
The Chinese-tools.com "Learn Chinese" Program is most appropriate for those who want to learn the Mandarin Chinese language on line. It is also intended for those who are enrolled in a regular class as an enrichment or a tutorial program.
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Learn Chinese
Free online mandarin audio courses
Learn Mandarin Chinese quickly and easily!40 online lessons with audio, including reading, speaking, writing, modern vocabulary, grammar, calligraphy, examples and exercices. All texts and dialogs in mp3 format for download.
Chinese in 10 Minutes a DayThis method is adequate for those who are learning to speak Chinese and want to gain fluency in everyday speaking and grammar usage.
Lesson 01 - Phonetics, Hello//Lesson 02 - Phonetics, Thank You//Lesson 03 - Numerals//Lesson 04 - Surname, First Name//Lesson 05 - Country, Nationality//Lesson 06 - City, Native Place//Lesson 07 - Year, Month, Date, Day//Lesson 08 - Birthdays, Age//Lesson 09 - Time, Daily Schedule//Lesson 10 - Public Places//
Section Two
Lesson 11 - Daily Necessities, Fruits//Lesson 12 - Buying Things, Prices//Lesson 13 - Wines, Drinks//
Lesson 14 - Coffee Bar, Tea House//Lesson 15 - Menu, Foods//Lesson 16 - In the Restaurant//
Lesson 17 - Eating Habits//Lesson 18 - Family, Profession//Lesson 19 - Languages, Learning//
Lesson 20 - Address, Telephone//
Section Three
Lesson 21 - Doing Something//Lesson 22 - Duration of Time//Lesson 23 - Result, Possibility//
Lesson 24 - Means of Transportation//Lesson 25 - Direction and Position//Lesson 26 - Asking the Way//
Lesson 27 - Climate, Weather//Lesson 28 - Sports Activities//Lesson 29 - Comparison//
Lesson 30 - At the hospital//
Section Four
Lesson 31 - Changing Money//
Anexes
Anexe : Table of Pinyin Pronunciation//Anexe : Numbers, complicated form
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Intensive Spoken Chinese （张朋朋)
Speaking Chinese
Mandarin audio lessons //Chinese vocabulary //Online exercises //Mandarin phrasebook //
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These are good educational reading materials,and websistes.
學生教師家長日常生活中的閱讀材料:
文章 oo 童话故事 oo 脑筋急转弯 oo 古代寓言 oo 伊索寓言 oo 成语词典 oo 四大名著oo 谜语 oo 留言本 oo 诗词 oo 人教社小语论坛oo 教学论文 oo教案中心oo学生作文oo教师随oo笔试题考卷oo成语故事oo校园幽默oo
人物系列[GreatMEN]傅聰oo蔡元培oo鄭板橋oo祖沖之oo林則徐oo岳飛oo杜甫oo孫子諸葛亮oo張衡oo孔子oo王羲之oo李白oo包拯oo蘇軾oo李時珍oo魯迅oo秋瑾.
歷史系列[History]: 古時的治水法oo思想自由的時期oo中國第一個統一的朝代 ─ 秦oo第一次中西文化交流oo三國鼎立oo女皇帝武則天oo宋朝忠義之士oo鄭和下西洋oo八國聯軍oo五四運動
中華美德系列[ChineseVirtues]: 愛國oo尊師oo孝親oo誠信oo堅毅
香港教育城http://www.hkedcity.net//香港資訊小校園http://www.smallcampus.net
粵語正音推廣協會http://www.aekids.tv小蕃薯http://www.news.gov.hk/tc/hkforkids
兒童天地http://www.news.gov.hk/tc/hkforkids/小蕃薯http://kids.yam.com
生活時令系列 衣 食 住 行 立春- 以農立國 春節 香港藝術節 - 粵劇 清明節 華佗誕 - 中國的醫學 端午節 香港書展- 造紙術和印刷術 中元節 中秋節 國慶 重陽節 孫中山先生誕辰 聖誕節
[© Chinese Culture on Net Foundation Ltd.—Thank You!]

Pendulum

蛇擺
Physics: The Simple Pendulum
Pendulum Project
Pendulum蛇擺
Ballistic Pendulum VideoA classic physics lab with an impressive military history, the ballistics pendulum was invented in 1742 to measure the speed of bullets. It was later discovered that by knowing the weight of the pendulum, the weight of the shot fired and the distance the pendulum moved when struck, you then can calculate the velocity of the shot. Lead students in recreating this experiment to demonstrate conservation of energy, conservation of momentum and projectile motion. The pendulum consists of a spring gun, a ball that can be launched horizontally and a block to catch the ball. The pendulum swings to a maximum height where it is stopped. By measuring this height and using conservation of mechanical energy students can deduce the kinetic energy of the pendulum plus projectile immediately after they collide. A scale and pointer indicate the highest arc of the swing for accurate measurements every time. Includes instructions.
http://www.cencophysics.com/ballistic...

Topic :Understanding The Relation: ENERGY(P.E. and K.E.) and WORK

Topic :Understanding The Relation: ENERGY and WORK (which is affected by FRICTION,GRAVITATION.)
Part 1: Introduction: Energy, Law of Conservation Of Energy
ENERGY!!!This is a video made for an Educational Media class on kinetic and potential energy.
The Law of Conservation of EnergyIn physics, the law of conservation of energy states that the total amount of energy in any isolated system remains constant but cannot be recreated, although it may change forms, e.g. friction turns kinetic energy into thermal energy. In thermodynamics, the first law of thermodynamics is a statement of the conservation of energy for thermodynamic systems, and is the more encompassing version of the conservation of energy. In short, the law of conservation of energy states that energy can not be created or destroyed, it can only be changed from one form to another or transferred from one body to another, but the total amount of energy remains constant (the same).
POTENTIAL ENERGY=KINETIC ENERGY [ But factors of friction or gravitation must be considered]
Moment of Inertia & Converting Potential Energy to Kinetic E

Part 2(A) What’s Potential Energy
Potential Energy is energy associated with height, kept in battery, spring in restrained state.
Physic: Potential Energy:
PE=mgh. The energy stored by moving a mass to a height above the surface of the earth, which turns into Kinetic Energy when dropped due to the force of Gravity.That's all well and good, but can you BREAK STUFF with it? SURE! At Slightly-Mad Science, we love breaking stuff!
Potential Energy

Energy - Gravitational Potential Energy

Part 2(B) What’s Kinetic Energy
Kinetic Energy is energy associated with movement
Conserve your frustration-energy and let us help you understand. Learn about kinetic energy, joules, the conservation of energy, and the work-kinetic energy principle
. Potential and Kinetic Energy
Mechanical Energy - Kinetic and PotentialA brief basic explanation about mechanical energy, potential energy and kinetic energy. the derivation of the formula and drill work. Stay tuned!
Part 3 Illustration of Potential Energy=Kinetic Energy
In theory if there is no friction or gravity or any external force (energy) acting on an object; the object either remain at inertial(stationary) or moving uniformly NON-STOP[Newton’s first and second law]. This is NEWTON’s LAW ON MOTION, but then it is still related to Thermodynamic THE LAW OF HEAT which establish this topic of POTENTIAL ENERGY=KINETIC ENERGY at the beginning of this study All in all , energy cannot be lost or created,it can only be transformed (as into light,heat,movement,sound…). THIS IS THE ZIST OF LAW OF CONSERVATION OF ENERGY. If energy cann’t be created, then how it comes into being? To me there’s a creator of universe!
Introduction to work and energy
Introduction to frictionCorrection of definition of "normal force" and an introduction to the coefficient of friction.
Friction on an inclined plane

Work/Energy problem with Friction
Kinetic and Potential Energy
Take a clock as an example:

(1)Battery=potential energy in the chemical-àHandle moves=kinetic energy,the WORK--- .[ 2 stages]
(2)If the clock/watch belonging to non-battery operated: The winding up(kinetic energy)THE WORK=Spring tighten up(potential energy)=the handle moves at each second(kinetic energy THE WORK )----[3 stages]
(3)Just a joke: When someone gets angry(potential energy) until cann’t bear it then blowing on somebody(kinetic energy).

Concave and Convex Lenses/Mirrors; Reflection and Refraction. Focal length

First thing first: Differentiate the 2 types of LENSES and 2 tyese of MIRRORS(exlusive of PLANE mirror), and the type of images: REAL(can be caught on screen, size of image smaller and INVERTED eg. image fall on camera flilm) and VIRTUAL(image BIGGER and NOT INVERTTED--eg. MANIFYING GLASS), whether it is REFRACTIion or REFLECTION .Every lense has a focal lense, and their uses in every day life(eg.cameras,projectors,microscopes and telescopes,they use different types of lenses in certain fix combination). Always learn the relevent law or definition in physic, check and understand every element in the definition/law; then look for experiment ,application and do some exercises to make sure you can do in examinatuion. This is the proper way of learning science and any study! Always start with the basic though sometime may appear childish but it is fundamentally importance for further advancement in any study. Even though you could be very well versed in the topic(even as a PROFESSOR), ponder over it how could it be relatated to other topics or other subjects .Wish you the best in study in my blogS(I myself is doing the studying by learning more and more indept from each topic in ALL my blogs). Oh yes, please bookmark and share with your friends,teachers,and parents I would be very happy if you learn something in my blogs, this is my ONLY OBJECTIVE for "WASTING MY RESOURSES" here, afterall what can I get from anyone reading it/them!


Concave and Convex lens 凹透鏡與凸透鏡物理實驗趣味短片 光學 Optics
Concave and Convex mirror 凹鏡與凸鏡物理實驗趣味短片 光學 Optics
Optics - difraction and reflectionThis is an example (using optics) showing with ray traces what happens when energy (acoustic for example) reaches an interface. This is one of the most important principles of Seismic method .
Concave and Convex mirrors

Mirage maker - concave mirrors

PARABOLIC MIRROR PARABOLOID CONCAVE SOLAR CONCENTRATORThis is an acrylic mirror I helped design and I am trying to get more. They are fantastic and this parabolic mirror boils 12 oz of water in 90 seconds.
http://www.greenpowerscienc...

Law of Reflection
Laws of reflection
Reflection in a plane miror (1)easy way (an exam cheat) to construct a ray diagram for reflection in a plane mirror. When you have viewed it look at the second video - it shows you how to construct a more complicated image.
Reflection in a plane mirror (2)This vidclip shows how to construct a ray diagram that illustrates that the virtual image formed in a plane mirror is erect, the same size as the image and laterally inverted - you need to view video 1 in this series in order to construct the image quickly - it tells you how to cheat!
Refraction of Light


Physics with Mr. Noon: Refraction Simulation
This activity uses interactive computer simulations to help demonstrate the reflection and refraction of light. You can find this activity and more like it at www.sciencewithmrnoon.com
LMT Physics 1 - Refraction Lab

How a Rainbow WorksRainbows are pretty, but are they things? This video clarifies all. Made with QlipBoard, free from http://www.qlipmedia.com/

Focal Length Lab

The Focal Length of a Concave MirrorWe found an approximate value for the focal length of a concave mirror. Then we used a raybox, cross hairs and screen to get a more precise value.

How to Figure Friggin Focal Length and f Stop Thingies

Different Ways Generating Electricity In Morden Days.

Nuclear Power - How it Works
How a nuclear generating station works. www.opg.gom
Wave power: how it works

Combined Heat & Power: how it works

http://www.greenpeace.org.u... CHP is the heart of an efficient, decentralised energy system. It's the most efficient way possible to burn fuel because so little energy is lost as waste heat. That...

Tidal power: how it works
http://wwww.greenpeace.org.uk/efficie...

Another little flash animation taken from EfficienCity, a virtual demonstration of how real world communities around the UK can use renewable and energy efficient systems to enjoy lower greenhouse gas emissions, cheaper electricity and heating bills, and a more secure energy supply.
Micro hydro: how it worksobject width="425" height="344">Micro hydro uses diverted river water to local produce up to 100 KW of power. Very useful in water rich areas where access to other energy sources is difficult. Find out how it works in this minute long silent animation.
Hydroelectic Power - How it Works

Fossil-Fuelled Electricity - How it Works

FREE ENERGY Home Generator -Zero Point Energy - Off the GridIs this the end of the internal combustion engine? Will we
finally be able to drive past gas stations with a friendly wave
and a honking horn? Will we be disconnecting from the power grid or even selling power back to the electric company? We're about to find out.