Images Dated 18th May 2004

Lions - Mating

FL-2955
Lions - Mating
Maasai Mara, Kenya, Africa
Panthera leo
Ferrero Labat
Please note that prints are for personal display purposes only and may not be reproduced in any way

© J.M.Labat/ardea.com

Africa, African, Behaviour, Big Cats, Cat, Cats, Female, Grassland, Grasslands, Kenya, Lion, Lioness, Lionesses, Lions, M Ammals, Maasai Mara, Male, Mammal, Mating, Re Production, Savannah, Wild Cats, Wild Life

Self-propelling car

Self-propelling car. Historical artwork of a design for a self-moving or automotive car by the Italian artist, engineer and scientist Leonardo da Vinci (1452-1519). This design is believed to date from 1478, and shows a sketch of the vehicle (top) and a more detailed plan of its inner workings (bottom). It used a series of geared wheels and leaf springs to propel itself along. A team of Italian scientists constructed a working wooden model based on this plan in Florence in 2004. This drawing was included in the Codex Atlanticus, a collection of Leonardo's drawings compiled at the end of the sixteenth century by the sculptor Pompeo Leoni from original notebooks

© SHEILA TERRY/SCIENCE PHOTO LIBRARY

Vitamin C

Vitamin C. Computer model of a molecule of the water-soluble vitamin C (ascorbic acid, C6.H8.O6). The atoms (solid tubes) of this organic molecule are colour-coded: carbon (yellow), hydrogen (grey) and oxygen (red). Vitamin C is obtained from fresh fruit, especially the citrus fruits such as lemons and oranges. It must be regularly replenished. It is required to maintain healthy connective tissue and heal wounds. It is also an antioxidant that may protect against viruses and cancer-causing substances. Lack of vitamin C causes scurvy, with symptoms such as bleeding gums, loose teeth and open skin sores. Small amounts of vitamins are an essential part of a healthy diet

© DR TIM EVANS/SCIENCE PHOTO LIBRARY