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2
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1answer
212 views

What causes charge buildup in a cloud before a lightning storm?

I am curious what causes the charge build up in a cloud before lightning occurs. I have seen in a few places such as this, that the process is not fully understood. Is this some form of static ...
0
votes
1answer
24 views

Illuminance on the vertical façade from the ground

I am trying to understand the illuminance on a vertical fa├žade from the light reflected from the ground. And am reading this through Daylighting and Architecture book. On page 41 it makes use of two ...
0
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1answer
55 views

How are charges formed in clouds during lightning?

How are charges formed in clouds that are responsible for lightning?
3
votes
0answers
44 views

Lightning sprites

Lightning usually occurs due to an electrostatic discharge between an electrically-charged cloud and the Earth's surface, or between clouds. There are also sprites, electrical discharges that occur ...
2
votes
0answers
103 views

How does lightning flip a car?

http://www.standard.co.uk/news/london/car-flips-into-air-after-being-struck-by-lightning-in-freak-electrical-storm-accident-10366208.html and a few others ...
2
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0answers
53 views

Layman explanation and demonstration of positive lightning

Inspired by the thunderstorm overhead, and after reading the question and answers Voltage and current of positive lightning - what is an effective means to explain this phenomenon to a layman? Also, ...
1
vote
0answers
16 views

Wearing a metal had does, or does not, increase your chance of being struck by lightning?

Prompted by this video My view is that it makes no difference as to the conductivity of the head or the field strength around the head during a thunderstorm. OTOH, would an insulating hat reduce the ...
1
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0answers
17 views

What are the “balls” that are present in lightning?

Whenever I see a slow-motion video of lightning, I see that there are some sort of balls going around before the real discharge. My question is.. what are those? (Video for reference: ...
0
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0answers
28 views

Why is lightning going from the Earth to the clouds while the electrons are going from the clouds to the Earth?

The lightning is often a discharge in advance. The (negative) charge slide occasionally a little further on in the conductive channel, wherein said channel is highlighted each time something. The ...
0
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0answers
24 views

lightning and LTE modem

I have heard that lightning likes to hit to a person who is talking to the cell phone. Is it the same for LTE(4g) modem which is used only for the internet. I mean will my home be more attractive ...
0
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0answers
90 views

Does lightning have a thickness?

We have calculated (probably measured) the speed, temperature and voltage of lightning so does lightning have a thickness? Note: When a lightning occur it heats up the air rapidly causing the air to ...
0
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0answers
157 views

Does a lightning strike have a physical weight?

A lot seems to be unknown about lightning and it is possibly a source of dark energy at the instance of the strike. So if we were to place say a 10kg lightning rod (earthed) on a set of insulated ...