Properties of the element, including its history, applications, and characteristics.
Statistics and information on the worldwide supply, demand, and flow of the element (PDF format).
Extensive information on history, uses, occurrence, compounds, and properties of the element.
Basic physical and historical information.
Basic information, atomic structure, and isotopes.
Atomic structure, chemical and physical properties, and table of nuclides.
Physical data, chemical properties, and health effects.
Increasing awareness of tantalum and niobium and their properties, and promoting the use of the metals and their products.
Campaigners from PETA, People for the Ethical Treatment of Animals, invaded the runway during the Victoria's Secrets show in New York targeting one of the most prominent models to wear fur since it began to creep back into acceptability in fashion circles.
Titanium, niobium, tantalum, stainless steel for medical implants and instrumentation. Switzerland.
Reports and articles about Dutch crop circles.
Marketing Plan for proposed crop circle breakfast cereal.
Software for layout optimization of rectangular parts on sheets, panels, rolls.
Symmetries in the families of rectangular solutions.
Defining the Crop Circle phenomena.
This site features LightCircles Jewelry Designs which were inspired by the crop circles.
Discharge calculations for rectangular, V-notch, Cipoletti weirs. End depth flow measurement for culverts, rectangular and triangular channels.
Free targets for rifle, pistol and airgun shooting. These targets are in pdf format so they can print to scale on a wide variety of computers.
Italian crop circle database.
A rolling news service for the crop circle phenomenon.
