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What causes the concentric rings found on some puddles? I've noticed that some freeze dried puddles, have a series of circles on them, like a weather map and wondered what could cause them.
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Asked by paigetheoracle
on 2010-06-16 08:34:04

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Categories: Weather .

Tags: ice, concentricrings, puddles.

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Why does the air appear crisp and clear, and the clouds look like torn white bread, when rain is imminent? Likewise why is the air hazy and clouds melt into one another as well as appear more diffuse?
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Asked by paigetheoracle
on 2010-06-16 08:27:48

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Categories: Weather .

Tags: Rain, sky, clouds, moisture.

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Why does the water in the toilet bowl move when it is windy outside? Is it to do with atmospheric pressure?
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Asked by paigetheoracle
on 2010-06-16 08:21:39

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Categories: Weather .

Tags: water, wind, movement, atmosphericpressure.

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What aspect of composition and weathering gave these stones their distinctive indented appearance (see photo)? I spotted these stones used to make walls in Gozo, Malta (see photo). What aspect of composition and weathering led to their distinctive indented appearance? Richard James, Cardiff, UK
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Asked by Moderator
on 2010-06-09 14:45:02

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Categories: Planet Earth, Weather , Unanswered.

Tags: weather, rock, stone, weathering, Malta.

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Bi-directional winds ? The two trails of cirrus cloud seem to show that there is wind travelling in opposite directions, and are very cleanly separated - is this likely ?
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Asked by jonty2323
on 2010-06-04 10:31:11

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Last edited on: 2010-06-06 08:52:48

Categories: Weather .

Tags: weather, Cirruscloud.

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Home Grown ice columns?

During a prolonged cold spell during this year's winter in the UK, I noticed some unusual ice crystals which appeared to be "growing" out of a stone in the garden (attached picture). The temperature had been below 0 degrees for about 10 days but most of the frost had gone from the other stones around this particular one.

The height of the ice crystals was around 1 cm with the overal size of the stone around 5 cm although the ice covering was very patchy. Could a porous stone create this effect when the water inside freezes and is forced out of the pores...?

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Asked by Sbellamy
on 2010-05-02 16:56:18

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Categories: Weather .

Tags: ice, icecrystal.

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Which falls faster rain or hail
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Asked by Bellarby
on 2010-04-20 09:28:51

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Categories: Weather .

Tags: Rain, Density, drag, hail.

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water vapour in atmosphere If all the water in the atmosphere were to condense at the same time, how high would the sea levels rise?
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Asked by terry_p
on 2010-04-14 18:14:31

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Categories: Weather .

Tags: pi.

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why do waves travel towards the shore no matter which way the wind blows?
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Asked by yongallan@yahoo.com
on 2010-03-10 14:42:17

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Categories: Weather .

Tags: waves, wind, shore.

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calculating tides Is there a reliable method to calculate the times of strongest and weakest gravitational pull of the moon upon objects at a specific location on earth, in effect a high and low tide? We considered using tide times, but they factor in variables such as ocean currents and coastal flows, which would adversly affect our results. Is there a formula that can give us a good answer?
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Asked by 25107945
on 2010-03-10 10:08:47