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Images Dated 28th May 2003

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 33 pictures in our Images Dated 28th May 2003 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Tricolporate pollen of rose flower Featured 28 May 2003 Print

Tricolporate pollen of rose flower

Rose pollen. Coloured scanning electron micrograph (SEM) of tricolporate pollen grains of a Garden Rose, Rosa sp. Pollen grains are the male sexual spores that are discharged from the male part of the flower. They contain the gamete that ferti- lizes the female ovule to form a seed. Pollen grains are classified according to a number of features: pores (porate), furrows (colpate), or both (colporate). Rose pollen has three furrows from each of which protrudes a bulge or pore (as seen here). They are thus tricolporate". Rose plants are insect pollinated, relying on insects to carry the pollen to the female flower structures. Magnification: x1, 035 at 5x7cm size. Magnification: x2, 550 at 12x16cm size."


Research submarine Featured 28 May 2003 Print

Research submarine

MODEL RELEASED. Research submarine. Remora 2000 two-seater submarine. The clear acrylic bubble housing the crew is 9. 5 centimetres thick. The submarine can manoeuvre with five thrusters, and its on- board computer can automatically maintain a fixed depth or heading. It can operate at depths as great as 610 metres, for up to 10 hours. This vessel is owned by the French company Comex. Photographed during an archaeological survey of the ancient Sud-Caveaux 1 wreck, off the Mediterranean coast of France

© Alexis Rosenfeld/Science Photo Library