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Category Archives: Ask Us
Ask Us: Are computer chips made out of sand?
The small integrated circuits are usually built out of semiconducting materials such as quartz.
Filed under Ask Us, Nanotechnology, Technology
Ask Us: How does HDTV work?
The crisp, sharp images we see on digital televisions are the result of how the signal is broadcast, received and displayed.
Filed under Ask Us, Comps, Technology
Ask Us: Can humans sneeze while sleeping?
We don’t sneeze when we are sleeping, thanks to our brains and our location.
Ask Us: Why is it dangerous to heat water in the microwave?
Could your cup of coffee burn you?
What is a red-giant?
Near the end of a star’s life, the temperature in its core rises and causes the star to expand into a red-giant.
Filed under Arts & Science, Ask Us, Astrophysics, Night Sky, Science, Space
Why do we need a varied diet?
Let’s talk about health and science.
Which star is the largest?
The red hypergiant VY Canis Majoris holds the current distinction for being the largest star ever observed, in terms of volume, measuring 2,600 times larger than the Sun.
Filed under Ask Us, Astrophysics, NASA, Night Sky, Space
Ask Us: How do lizards survive when they lose their tail?
Most skinks and some of the dragon species can drop their tail quickly to avoid being captured by a predator.
Filed under Animals, Ask Us, In the mag, Nature
Ask Us: What gives bird feathers their colours?
Birds can see a larger spectrum of colours than most of us, and they flaunt a variety of eye-catching plumage. Pigments called melanins, carotenoids and porphyrins made in the bird’s skin produce most feather colours.
Filed under Animals, Ask Us, In the mag, Nature
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