Friday, November 21, 2014

TED Talks - Michael Pritchard. How to make filthy waterdrinkable

Uploaded on Aug 4, 2009 Too much of the world lacks access to clean drinking water. Engineer Michael Pritchard did something about it -- inventing the portable Lifesaver filter, which can make the most revolting water drinkable in seconds. An amazing demo from TEDGlobal 2009.

Good morning everybody. I'd like to talk about a couple of things today. The first thing is water. Now I see you've all been enjoying the water that's been provided for you here at the conference, over the past couple of days. And I'm sure you'll feel that it's from a safe source.
But what if it wasn't? What if it was from a source like this? Then statistics would actually say that half of you would now be suffering with diarrhea. I talked a lot in the past about statistics, and the provision of safe drinking water for all. But they just don't seem to get through. And I think I've worked out why. It's because, using current thinking, the scale of the problem just seems too huge to contemplate solving. So we just switch off: us, governments and aid agencies. Well, today, I'd like to show you that through thinking differently, the problem has been solved. By the way, since I've been speaking, another 13,000 people around the world are suffering now with diarrhea. And four children have just died.
I invented Lifesaver bottle because I got angry. I, like most of you, was sitting down, the day after Christmas in 2004, when I was watching the devastating news of the Asian tsunami as it rolled in, playing out on TV. The days and weeks that followed, people fleeing to the hills, being forced to drink contaminated water or face death. That really stuck with me. Then, a few months later, Hurricane Katrina slammed into the side of America. "Okay," I thought, "here's a First World country, let's see what they can do." Day one: nothing. Day two: nothing. Do you know it took five days to get water to the Superdome? People were shooting each other on the streets for TV sets and water. That's when I decided I had to do something.
Now I spent a lot of time in my garage, over the next weeks and months, and also in my kitchen -- much to the dismay of my wife. (Laughter) However, after a few failed prototypes, I finally came up with this, the Lifesaver bottle.
Okay, now for the science bit. Before Lifesaver, the best hand filters were only capable of filtering down to about 200 nanometers. The smallest bacteria is about 200 nanometers. So a 200-nanometer bacteria is going to get through a 200-nanometer hole. The smallest virus, on the other hand, is about 25 nanometers. So that's definitely going to get through those 200 nanometer holes. Lifesaver pores are 15 nanometers. So nothing is getting through.
Okay, I'm going to give you a bit of a demonstration. Would you like to see that? I spent all the time setting this up, so I guess I should. We're in the fine city of Oxford. So -- someone's done that up. Fine city of Oxford, so what I've done is I've gone and got some water from the River Cherwell, and the River Thames, that flow through here. And this is the water. But I got to thinking, you know, if we were in the middle of a flood zone in Bangladesh, the water wouldn't look like this. So I've gone and got some stuff to add into it. And this is from my pond.
(Sniffs) (Coughs) Have a smell of that, mister cameraman.
Okay. (Laughs) Right. We're just going to pour that in there.
Audience: Ugh!
Michael Pritchard: Okay. We've got some runoff from a sewage plant farm. So I'm just going to put that in there. (Laughter) Put that in there. There we go. (Laughter) And some other bits and pieces, chuck that in there. And I've got a gift here from a friend of mine's rabbit. So we're just going to put that in there as well. (Laughter) Okay. (Laughter) Now.
The Lifesaver bottle works really simply. You just scoop the water up. Today I'm going to use a jug just to show you all. Let's get a bit of that poo in there. That's not dirty enough. Let's just stir that up a little bit. Okay, so I'm going to take this really filthy water, and put it in here. Do you want a drink yet? (Laughter) Okay. There we go. Replace the top. Give it a few pumps. Okay? That's all that's necessary. Now as soon as I pop the teat, sterile drinking water is going to come out. I've got to be quick. Okay, ready? There we go. Mind the electrics. That is safe, sterile drinking water. (Applause) Cheers. (Applause) There you go Chris. (Applause) What's it taste of?
Chris Anderson: Delicious.
Michael Pritchard: Okay. Let's see Chris's program throughout the rest of the show. Okay? (Laughter)
Okay. Lifesaver bottle is used by thousands of people around the world. It'll last for 6,000 liters. And when it's expired, using failsafe technology, the system will shut off, protecting the user. Pop the cartridge out. Pop a new one in. It's good for another 6,000 liters.
So let's look at the applications. Traditionally, in a crisis, what do we do? We ship water. Then, after a few weeks, we set up camps. And people are forced to come into the camps to get their safe drinking water. What happens when 20,000 people congregate in a camp? Diseases spread. More resources are required. The problem just becomes self-perpetuating. But by thinking differently, and shipping these, people can stay put. They can make their own sterile drinking water, and start to get on with rebuilding their homes and their lives.
Now, it doesn't require a natural disaster for this to work. Using the old thinking, of national infrastructure and pipe work, is too expensive. When you run the numbers on a calculator, you run out of noughts. So here is the "thinking different" bit.
Instead of shipping water, and using man-made processes to do it, let's use Mother Nature. She's got a fantastic system. She picks the water up from there, desalinates it, for free, transports it over there, and dumps it onto the mountains, rivers, and streams. And where do people live? Near water. All we've go to do is make it sterile. How do we do that?
Well, we could use the Lifesaver bottle. Or we could use one of these. The same technology, in a jerry can. This will process 25,000 liters of water; that's good enough for a family of four, for three years. And how much does it cost? About half a cent a day to run. Thank you.
So, by thinking differently, and processing water at the point of use, mothers and children no longer have to walk four hours a day to collect their water. They can get it from a source nearby. So with just eight billion dollars, we can hit the millennium goal's target of halving the number of people without access to safe drinking water. To put that into context, The U.K. government spends about 12 billion pounds a year on foreign aid. But why stop there? With 20 billion dollars, everyone can have access to safe drinking water. So the three-and-a-half billion people that suffer every year as a result, and the two million kids that die every year, will live. Thank you.

Tuesday, October 14, 2014

Saturday, October 11, 2014

How to save the kiwi

This video clip gives information about the kiwi and efforts that are being made to save this endangered species.  With only 5 percent of kiwi chicks surviving to adulthood in the wild it is vital that measures are taken to protect our national icon.  The Westcoast Wildlife Centre plays an important role caring for kiwi. Here they monitor and care for kiwi  from newly hatched eggs (which are incubated at this facility) to their ultimate release (when weighing about one kilogram) into protected environments.

Wednesday, September 17, 2014

Preparing for a job interview

Preparing for an interview

This site will help you do some ground work before your job interview. This essential to making a good impression on an employer. Researching the company/organisation and the role itself will help you answer the employer's questions, and show you're keen for the job.
The interview is your chance to present your skills, experience, personal qualities and other strengths as they relate to the position you are applying for. It is also an opportunity to get more information about the organisation or position. This will help you decide if it is the right job for you.

Saturday, September 6, 2014

Role Models,

Role Models,

Sam Johnson (see clip here).established the  "Scarfie Army" and the organised teams to clean-up silt after the Christchurch earthquakes.

Uploaded on Sep 10, 2010
Sarah and Ben went out with the amazing group of student volunteers who have been assisting residents all over Christchurch, following the 7.1 magnitude earthquake on September 4.

Over 900 students were out on September 9, clearing driveways and backyards of silt, manning roadblocks for the council, and offering their services anywhere they could.

For more information on how you can help, please visit the Student Volunteer Base Facebook page:!/event.php?...

Sir Edmund Hillary
Published on May 28, 2013
It's 60 years since the first ascent of Mount Everest by Sir Edmund Hillary and sherpa Tenzing Norgay.

Scaling the world's tallest peak was much more challenging back in the 1950's.

Today, the climb is more popular than ever, but there are concerns about overcrowding.

Kate Sheppard

Monday, August 11, 2014

PowerPoint 2010 Crash Course Part Eight

PowerPoint 2010 Crash Course Part Eight

PowerPoint 2010 Crash Course Part Seven

PowerPoint 2010 Crash Course Part Seven

PowerPoint 2010 Crash Course Part Six

PowerPoint 2010 Crash Course Part Six

PowerPoint 2010 Crash Course Part Five

PowerPoint 2010 Crash Course Part Five

PowerPoint 2010 Crash Course Part Four

PowerPoint 2010 Crash Course Part Four

Powerpoint 2010 Crash Course Part Three

Powerpoint 2010 Crash Course Part Three

Powerpoint 2010 Crash Course Part Two

Powerpoint Presentation Tutorials - Crash course Part Two

Powerpoint 2010 Crash Course Part One

Uploaded on Jul 1, 2010
Learn the fundamentals of Microsoft PowerPoint 2010 in 60mins. Eight Part Video Course. Topics include creating slides, working with layouts, changing your presentations background design, adding text and images and setting up tables of information and conclude with showing you how to setup slide transitions and animation effects.

Powerpoint Presentation Tutorials - PowerPoint in Office 2010 Part One

Uploaded on Mar 27, 2011
Learn to use PowerPoint in Office 2010. Create Slides, Layout, add picture slides , add clip art to slides, apply design, slide transition, Normal view, Slide Sorter, Notes page

Powerpoint Presentation Tutorials - How to create a professional and effecftive Powerpoint.

Uploaded on May 29, 2011
A video showing simple features which allow you to create a professional and effective Powerpoint.

Microsoft PowerPoint is a trademark of the Microsoft Corporation.

Sunday, August 10, 2014

Powerpoint Presentation Tutorials - Basic slides for beginners

Uploaded on Nov 17, 2011
PowerPoint 2010: Basic Slides for Beginners. Learn how to insert a background, text, and images. Learn the proper way to add slide transition and animation. For a full list of our videos organized by category - visit

Wednesday, August 6, 2014

Phrasal verbs - Interactive quizzes

Test your knowledge of phrasal verbs with these interactive online quizzes

Phrasal Verbs - How to Study Them

How to Study Phrasal Verbs

Study Strategy for Phrasal Verbs

Check out this site.Learning phrasal verbs is one of the most challenging tasks for English learners. Teachers can use this introducing phrasal verbs lesson plan to help students become more familiar with phrasal verbs and start building phrasal verb vocabulary. This phrasal verbs reference list will also get you started with short definitions of approximately 100 of the most common phrasal verbs. Finally, there are a wide variety of phrasal verb resources on the site to help you learn new phrasal verbs and test your understanding with quizzes.

Phrasal verbs - An introduction

A good place to start...
Getting students to come to terms with phrasal verbs is a constant challenge. The fact of the matter is that phrasal verbs are just rather difficult to learn. Learning phrasal verbs out of the dictionary can help, but students really need to read and hear phrasal verbs in context for them to be able to truly understand the correct usage of phrasal verbs. This lesson takes a two pronged approach to helping student learn phrasal verbs. It begins with a reading comprehension which can also serve to introduce some interesting student stories for discussion. This comprehension is peppered with phrasal verbs which can then be discussed as a class. The second part of the lesson includes a brainstorming session for students to create lists of phrasal verbs to share with one another.

Phrasal verbs - Alphabetised listing

 This site  -Education English as a Second language, by Kenneth Beare, has some excellent materials to help you learn about the use of phrasal verbs
Phrasal verbs are verbs that are made up of a main verb and followed by particle, usually prepositions. Most phrasal verbs are two or three words and can be quite challenging for English learners as they can be literal or figurative in meaning. In other words, sometimes it is easy to understand the meaning (such as "get up"), but in the case of figurative meanings can be quite confusing (such as "pick up"). Begin learning phrasal verbs with a limited list.

Thursday, June 19, 2014

Writing skills - Electronic resource referencing

This you tube clip give information on how to reference electronic references.

Writing skills - APA Referencing...The Basics

This you tube clip deals with APA Referencing and gives details of 'In text referencing' and  tips on how to make a 'Reference list'

Writing skills - Paraphrasing

This you tube clip gives some examples mof paraphrasing at sentence and paragraph level.

Also checkout the online site here that allows you to input text, make your paraphrase and then check the two texts to see how they compare.

Writing skills - In text citations

This you tube clip defines paraphrasing and quoting and tells how to reference them correctly in text using APA reference style.

Writing skills - summarising text

This you tube clip offers suggestions for writing a text summary.

Conversation skills - How to end a conversation

This you tube clip give language that may be used for ending a conversation

Writing skills - summarising text

This you tube clip will give you some tips for summarising a text.

Writing skills - Paraphrasing

This you tube clip gives useful tips on paraphrasing

Tuesday, May 13, 2014

Studying at Otago Polytechnic, New Zealand




Otago Polytechnic is proud to be a leader in hands-on, career-focused education, achieving some of the best student achievement and satisfaction results in Australasia, and earning resounding endorsements from employers.
The numbers


Monday, April 7, 2014

'Professionelle' - Job interview questions and model answers.

This site 'Professionelle' has an excellent section on commonly used interview questions and gives model answers to help you prepare for that all important job interview.

Monday, March 24, 2014

Resumes cover letters and employment related letters

Here's all the information you need to create effective job search correspondence, including resume, cover letter, and curriculum vitae writing resources, job search email messages, resume and cover letter samples, thank you letters, resignation letters, and all the other letters you will need to write to job search effectively.

Job Interview Practice

Job Interview Practice

This site poses
100 Potential Interview Questions

While there are as many different possible interview questions as there are interviewers, it always helps to be ready for anything. So we've prepared a list of 100 potential interview questions. Will you face them all? We pray no interviewer would be that cruel. Will you face a few? Probably. Will you be well-served by being ready even if you're not asked these exact questions? Absolutely.

Tuesday, March 18, 2014

Trade Me - a place to buy and sell new and used goods

Trade Me

Who are we?

We are Trade Me, the place where Kiwis buy and sell online. We're currently the leading online marketplace and classified advertising platform in New Zealand.
This spans from auctions to fixed-priced sales for new and used goods, with automotive, real estate and employment businesses.
We also have web businesses specialising in accommodation and online dating. On top of that, we sell advertising across our portfolio of websites.
The core idea of Trade Me is simple: we connect people and businesses, and provide them with the information and tools they need to undertake a transaction.

Free cycle:- giving and receiving goods

Freecycle:-History & Background Information

A Brief History

On May 1st, 2003, Deron Beal sent out the first e-mail announcing The Freecycle Network™ to about 30 or 40 friends and a handful of nonprofits in Tucson, Arizona. At the time Deron founded The Freecycle Network, he worked with a small nonprofit organization, RISE, which provides recycling services to downtown businesses and transitional employment to Tucsonans in need.
As the team recycled, rather than watching perfectly good items being thrown away, they found themselves calling or driving around to see if various local nonprofits could use them. Thinking there had to be an easier way, Beal set up that first Freecycle e-mail group in a way that permitted everyone in Tucson to give and to get. Freecycle was off and running.
The Freecycle concept has since spread to over 85 countries, where there are thousands of local groups representing millions of of members -- people helping people and 'changing the world one gift at a time.' As a result, we are currently keeping over 500 tons a day out of landfills! This amounts to five times the height of Mt. Everest in the past year alone, when stacked in garbage trucks!
By giving freely with no strings attached, members of The Freecycle Network help instill a sense of generosity of spirit as they strengthen local community ties and promote environmental sustainability and reuse. People from all walks of life have joined together to turn trash into treasure.

Monday, March 17, 2014

New Zealand National Anthem

E Ihowa Atua
O ngā iwi mātou rā,
āta whakarongo na;
Me aroha noa.
Kia hua ko te pai;
Kia tau tō atawhai;
Manaakitia mai

God of nations at thy feet
in the bonds of love we meet.
Hear our voices, we entreat,
God defend our free land.
Guard Pacific’s triple star
From the shafts of strife and war,
Make her praises heard afar,
God defend New Zealand.

A Ha Ka Ma song

This song "A Ha Ka Ma" to the tune of "Stupid cupid" contains all of the leters of the maori alphabet