3/1/2004:
Intermediate
Word: orrery
(a) clockwork model of the solar system (b) museum display case (c)
bevel-gear mechanism in water-powered grist mill (d) turnstile
Difficult Word: -
purlieu (a)
Napoleonic French soldier (b) bandolier (c) crocheting stitch (d)
outskirts
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3D
Mars recreated from photos
- BBC Researchers
are creating 3D images of the Martian surface using photographs taken by
Nasa's robot rovers. Using techniques originally applied to
paintings, the researchers have written software that works out what
flat images would look like from different viewpoints. The result
is a navigable 3D model created from one or more pictures snapped by the
Mars buggies. The first fruits of the research are short video sequences
that give 3D views of Mars without the need for special spectacles. Mr
Criminisi said it took about five minutes to generate the model from an
image. |
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Earth
almost put on impact alert
- BBC Left: No
one was quite sure at the beginning where 2004 AS1 was headed. Astronomers
have revealed how they came within minutes of alerting the world to a
potential asteroid strike last month. Some scientists believed on 13
January that a 30m object, later designated 2004 AS1, had a one-in-four
chance of hitting the planet within 36 hours. It could have caused local
devastation and the researchers contemplated a call to President Bush
before new data finally showed there was no danger. The procedures for
raising the alarm in such circumstances are now being revised. |
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Vaccine
'could block lung cancer'
- BBC Left: Non-small
cell lung cancer is hard to treat successfully.
Experts have developed a vaccine which could be used to block the
progress of lung cancer. A small study has suggested it could delay the
recurrence of tumours in patients with the most common form of cancer.
Non-small cell lung cancer accounts for three quarters of cases of the
disease in the UK. A small number of patients were still free of cancer
three years after they were vaccinated. In others, the vaccine appeared
to delay the recurrence of cancer for several months. In others, the
vaccine appeared to delay the recurrence of cancer for several months. |
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