Australian Native Plant photo collections goes Royalty Free

Eucalyptus mannifera
I'm experimenting with RF for my collection of Australian Native Plant Photos. Pricing is very affordable and usage is simple. For the time being I'm keeping the Rights Managed model for all my science images. Any feedback would be welcome. These images would be ideal for Australian small businesses. Use on letterheads, business cards etc. All for one low fee. Also suitable for garden centres, conservation groups etc. The option of personal use licences is still there, so you can beautify your computer background etc.

Facebook page launched

Please see my brand new Facebook page.

Any suggestions would be welcome.......

Circle Sphere Calculator gets a makeover

My popular calculator that computes radius, diameter, circumference, circle area, spherical volume, and sphere surface area has just been re-vamped. The calculator itself has larger text and numbers making it easier to read. All existing images have been removed and replaced with the new clean sphere graphic mentioned in my previous post. Similar improvements have been wrought in the sister cone and cylinder calculators.

Are graphics on a white background preferred by picture editors?

Sphere with equations for area and volume
Images with a white background are easier to integrate with text. To that end, I have re-rendered some of my images to give them a clean white look. They jump out of the page and are ideal for textbook use (and web use, too). Traditionally, I have used a black background. Mainly because I started doing electronic graphics for TV and images worked better with a dark background. Textured backgrounds are nice but can be restricting for some uses. For most images, I can alter the background for a modest fee.

Please let me know what you think: white, black, flat colour, or texture!

Here are some of the newest examples:

Rabies virus on white background
Cylinder showing equations on white

Cone showing equations on white

House Prices & Rental Charges Calculator

Can we know what houses are really worth? It's a vexed question with no clear answer. Generally people say that the property is worth whatever the market will bear. Is there a more rigorous method? I have a little calculator that can calculate the theoretical rental that you must charge to pay for the cost of a house. It is only really for entertainment but it gives you a perspective on the disparity between rental charges and real housing costs. When I try some figures it shows that rentals are usually far too low to cover the real costs. Are rents too low or house prices too high? In a rising property market capital gains can make up for the shortfall. But what happens if prices fall? Have fun!