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Hydroelectricity

 

Hydro-electricity is presently the largest contributor to renewable energy worldwide; in Australia and particularly in NSW.

 

Hydro-electricity also is more desirable than wind generation because of a higher capacity factor and ability to produce power on demand.

 

But hydro-electricity is resource constrained as it is difficult to build new dams in the developed countries that are presently heavy fossil fuel consumers.

Dams flood private property and/or National parks and have many self-interested and environmentally concerned opponents.  Hydro-electric schemes interfere with natural river flows and related wildlife, particularly when they involve extensive inundation.  It has become politically very difficult to construct new dams in Australia, even when the potential energy resource is significant. 

Nevertheless in developing countries like China, India and Vietnam there are large hydro-electricity resources that remain unexploited.

 

 

 

 


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Travel

Cuba

 

 

 

What can I say about Cuba? 

In the late ‘70s I lived on the boundary of Paddington in Sydney and walked to and from work in the city.  Between my home and work there was an area of terrace housing in Darlinghurst that had been resumed by the State for the construction of a road tunnel and traffic interchanges.  Squatters had moved into some of the ‘DMR affected’ houses.  Most of these were young people, students, rock bands and radically unemployed alternative culture advocates; hippies. 

Those houses in this socially vibrant area that were not condemned by the road building were rented to people who were happy with these neighbours: artists; writers; musicians; even some younger professionals; and a number were brothels.  

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Fiction, Recollections & News

A Womens' view

 

Introduction

 

The following article presents a report by Jordan Baker, as part of her history assignment when she was in year 10 at North Sydney Girls’ High School.   For this assignment she interviewed her mother, grandmother and great-grandmother about their lives as girls; and the changes they had experienced; particularly in respect of the freedoms they were allowed.

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Opinions and Philosophy

Energy and a ‘good life’

 

 

 

Energy

With the invention of the first practical steam engines at the turn of the seventeenth century, and mechanical energy’s increasing utility to replace the physical labour of humans and animals, human civilisation took a new turn.  

Now when a contemporary human catches public transport to work; drives the car to socialise with friends or family; washes and dries their clothes or the dishes; cooks their food; mows their lawn; uses a power tool; phones a friend or associate; or makes almost anything;  they use power once provided by slaves, servants or animals.

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