1.
The Viagra story. A false start.
Viagra's false start. Viagra™ started life as a medicine intended to treat angina pectoris. ... Viagra™ was developed as a treatment for angina. ...
2.
Extracting copper. Extracting copper.
The copper ore has to be dug from the ground. The ore contains some copper ... What method would have to be used to extract sodium from its ore – rock salt? ...
3.
Extracting copper. Extracting copper.
Part of an interactive on-line booklet about extracting and recycling copper ... The copper ore has to be dug from the ground. The ore contains some copper ...
4.
Microbes and food. We are what we eat. Chicken.
Raw chicken becomes contaminated with bacteria from the gut, skin and feet of the birds during slaughter and from the water and ice used in processing. ...
5.
Copper recycling and sustainability - WEEE
WEEE symbol indicating that the goods should not be discarded alongside ... Electrical goods falling under this Directive bear the WEEE symbol (see image on ...
6.
Oil fields
There are more than fifty oil fields in the North Sea, near Britain. Each field can have a number of platforms extracting oil and possibly some rigs ...
7.
Copper and electricity. Copper cables.
Copper is three times as dense as aluminium. An aluminium cable is half the weight of a copper one with the same rating, so aluminium cables (reinforced ...
8.
What is a barrel of oil?
The weight of a barrel depends on where the oil comes from. However, there are about 8 barrels in a tonne. You could fit nearly 2 million barrels of oil ...
9.
The chemistry of steelmaking. Making iron.
Making iron is the first step in the production of steel. ... Most of the coal is packed into sealed ovens and heated strongly until it decomposes. ...
10.
Human immune system. Barriers to infection.
This part of the immune system is called non-specific immunity because it is present all the ... Click on the blue spots to see the barriers to infection. ...
