Latest Graham Martin Stories
From office block windows to power lines and wind turbines, many species of bird are prone to colliding with large man-made objects, many of which appear difficult not to notice to human eyes. A new study published today in IBIS outlines a new approach to understanding how birds see the world and why they find pylons and turbines so hard to avoid. The problem of bird collisions is a serious concern for conservationists. Research suggests that bird mortality caused by collisions with human...
- A Roman unit of weight, 1⁄1728 of a pound.
- A weight of four grains used in weighing gold and precious stones; a carat.
- In anatomy, a formation suggesting a husk or pod.
- The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
- A coin of base silver of the Gothic and Lombard kings of Italy.