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Giant's Circuit Walk: Walking through Dense Ferns of Mount Worth State Park, Victoria, Australia.

Sep 05, 2010 © Harry P. Schlanger
Giant's Circuit is delightful for bushwalking through dense ferns, seeing the 300-year old giant Ash tree and taking snaps along Larkin Creek. more...

Structure of the Sun: Identifying the Sun's Layers, Temperatures and Densities, and Solar Phenomena

Aug 29, 2010 © Harry P. Schlanger
The Sun is an amazing fiery gas ball with its layers at various temperatures and densities. It has enough energy to last 5 billion years. more...

Tracking the Solar Cycle: Sources of Solar Data for Mapping the Current Solar Cycle's Progression

Aug 23, 2010 © Harry P. Schlanger
Governmental agencies provide for the dissemination of solar activity data and information. The breadth of coverage is impressive and the information and data, relevant and timely. more...

Indices that Quantify Solar Activity: Measuring Solar Activity Using Various Devised Indicators

Aug 14, 2010 © Harry P. Schlanger
Solar indices are indicators that quantify the Sun's activity. They highly correlate to each other and to the dominant 11-year solar cycle. more...

Introduction to the Solar Cycle: Sunspots Growing and Retreating in Regular Cycles of Activity

Aug 8, 2010 © Harry P. Schlanger
The 11-year cycle of solar activity is characterised by the rise and fall in the numbers and surface area of sunspots. These are one of many solar activity indicators. more...

Royal Botanic Gardens, Melbourne, Australia: One of the World's Finest Gardens of Exotic Trees and Plants

Aug 5, 2010 © Garry A. Parkes
The Botanic Gardens feature lakes, numerous large trees and 50,000 individual plants, some of which are 150 years old. They are home to majestic black swans, birds, eels and bats. more...

The Giant Gippsland Earthworm: Growing to Lengths of Up to 3m in West Gippsland, Victoria, Australia.

Jul 31, 2010 © Harry P. Schlanger
The Giant Gippsland Earthworm was first discovered in 1878. It is the largest worm of its kind in the world - so large that some may confuse it for a snake. more...

Organizational Change Management: Identifying Change and Consequences for Poor Management

Jul 23, 2010 © Harry P. Schlanger
Change is one of the most inevitable and critical aspects of effective business management, requiring proper planning and implementation. more...

Electric Current Defined: The Flow of Charge through a Conductor

Jul 17, 2010 © Harry P. Schlanger
Just as a current in a stream involves the flow of water, electric current is the flow of electric charge - the amount of charge moving in unit time. more...

The Origins of Petroleum: Inorganic Abiotic versus Fossil Fuels Theories

Jun 26, 2010 © Harry P. Schlanger
Did crude oil originate from inorganic constituents deep in the mantle of the earth? Or, was genesis from organic material lying at shallower depths.. more...

Advances in High Speed Cruise Missiles: Technological Marvels are the Deadliest Anti-Ship Weapons

Jun 25, 2010 © Harry P. Schlanger
Cruise missiles strive for incredible hypersonic speeds and low altitude stealth delivery to pierce the defenses of target ships. more...

Representing Sound as Pressure Waves: Longitudinal Wave Characteristics Travelling Through Different Media

Jun 25, 2010 © Harry P. Schlanger
Sounds are pressure waves reaching our hearing apparatus by the movement of surrounding air molecules. Studying waves helps us to understand basic transport mechanisms. more...

P-N Diode as a Switch: Using the Ideal Diode Concept of a Switch to Analyse Simple Circuits

Jun 21, 2010 © Harry P. Schlanger
A diode consists of dissimilar semiconductor materials joined together. One may approximate an 'ideal' diode to a switch and simplify analysis of simple circuits. more...

The P-N Diode Junction: Dramatic Changes in Electrical Properties Controlled by Small Barrier Potential

Jun 21, 2010 © Harry P. Schlanger
A diode consists of p-type and n-type semiconductor materials joined together, forming a depletion region at the junction. Control of this potential determines current flow. more...

What is Electric Charge?: Exertion of Electrical Force Identifies Charge as Measured by the Unit of Coulomb

Jun 20, 2010 © Harry P. Schlanger
Objects that exert electric forces are said to have charge. Charge is the source of electrical force and there are two kinds of electrical charges, positive and negative. more...

Featured Articles:

Household Chemicals

Chemicals in the Home: Identifying Chemistry Behind Common Household Products

May 9, 2009 © Harry P. Schlanger
Everyone probably comes into contact with more chemicals and chemistry in their own home than at any other place. more...

Olympics Facts and Figures: Getting Ready for London 2012

May 5, 2009 © Emily J. Foster
Information for sports fans looking for previous Olympics competitions and results, competitors current world rankings, and World and Olympic records. more...

The copyright of all articles on this site is owned by the author(s). Permission to republish in print or online must be granted by the author(s) in writing.

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