Welcome to North Navigation's online Sea School

If you are a student with us, access all our course resources and videos by logging in from the 'login' link in the top right-hand corner of this page.

Keep in touch with your fellow students, share thoughts on what you're working on and get help from your tutor.

We made these online courses to bridge the gap between classroom learning and homework. It's just like an on-line course but it's extra, and it's free.

There are loads of resources in here to help you with your course. When you first log in, many of these are already open for you to use but many more sections will open as you progress through your course.

See you next week, in class :)

Di Hickman - your tutor.

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Site news

School Principal
Wind Turbines: Watt do you think?
by Di Hickman - Thursday, 13 August 2015, 09:26 PM
Group Yachtmaster Lancaster March 2012

I began an interesting email conversation with Paul after he sent me this picture of the Isolated Danger Mark outside Strangford Lough which is, in fact, an underwater turbine. I’ve added the artist’s impression of this to our Buoys presentation.











We began to discuss our opinions on the choices and I think this makes a good discussion.

We all have our opinions on land turbines and how they have affected the landscape. Before we reach a conclusion, most of us find no difficulty accepting that there needs to be a sacrifice in order to improve our currently depleting supply options, but we also find cceptance of their vast beauty nestling in uncomfortable conflict next to our historic right to appreciate the already beautiful landscape upon which they are placed.

Thus, most of us are happy to accept a group of turbines being suddenly erected on some distant hill which is virtually none of our business. But what when they are on our doorstep, our special mountain, our horizon, our un-exploited paradise?

So, many of us would prefer them to be out at sea (preferable somewhere ugly anyway – no guessing where I would put them:). Isn’t that simply saying we don’t really want to see them?

I’d like to start with discussion on this. But, first I’d like to bullet-out a trend of opinions which seem to have become a meantime solution for the problem.

  • A vast percentage embrace the beauty of turbines as ‘change’
  • This passive acceptance most often relates to turbines planted on ‘someone else’s hill’
  • This tends to be outlined by summative solution that turbine farms should be built out at sea

Below are our some facts and renewable energy options either in place or under construction.

What do YOU think the solution to our problem is?

Our energy sources come in many different options of ugly solutions - one of which we must choose. Or must we?

  • Tide
  • Wave
  • Solar
  • Wind
  • Hydroelectricity
  • Radiant Energy
  • Biomass
  • Compressed Natural Gas
  • Nuclear Power

Renewable vs Non-renewable: What's the difference?

Renewable Energy Resources
are ones that won't run out
Part of a wind farm in Cumbria. (c) freefoto.com

Winds will keep on blowing, whether we use the energy or not.
So Wind power is a renewable energy resource.

Non-renewable resources will eventually run out.

'Nodding donkey' pumping oil out of the ground. (c) freefoto.com

When we've extracted all the Earth's oil, there isn't any more.
So oil is NOT a renewable energy resource.

Other interesting links:

  • www.news.bbc.co.uk/1/hi/sci/tech/1032148.stm
  • www.darvill.clara.net/altenerg/wave.ht
  • http://listverse.com/2009/05/01/top-10-renewable-energy-sources/
School Principal
Currently Running - RYA Yatchmaster Theory in Lancaster
by Di Hickman - Thursday, 13 August 2015, 09:25 PM
Group Yachtmaster Lancaster March 2012

If you want to enrol on this course click here and ask if there's space

Course Information

Timings & Location

Directions are emailed to course participants.

Parking Information, maps, docs and directions can be found in the folder "How to get there - Getting to your course". (this is the second item listed under the Course Information topic.

We commences at:

  • 10.00am

Lunch time and breaks are at:

  • 15 mins - 11.30 – 11.45am
  • One hour - 1.30 – 2.30pm
  • 15 mins – 4.00-4.15pm

Your class ends at:

  • 5.30pm

You will need to bring:

  • A pen and exercise book are useful, in order to jot down notes.
  • Lunch money – there are shops, cafes/pubs nearby or bring packed lunch.