Starship Asterisk*

bethkatz wrote:I was in Colorado at that time and took this picture from just east of Bailey. It was a seriously impressive storm. I've done no image manipulation other than cropping. My location was 39.439300, -105.413331 which is about 50-60 miles north northwest of Palmer Park. My camera says it was 8:28pm local time 7/7/2016. I had been watching it and have pictures from about 8:15pm.

I appreciate seeing a different perspective. As soon as I saw Colorado and July, I had to check the date. I thought I had taken a screenshot of the local radar, but maybe it's on a different computer.

ta152h0 wrote:
I saw a lot of that in Brasil !

RJN wrote:

Chris Peterson wrote:Without knowing the exact date and time I can't say much else.

For general background information, in an email the photographer said "The image was taken on 7-7-16 around 8pm at Palmer Park in Colo Spgs, CO. "

Chris Peterson wrote:Without knowing the exact date and time I can't say much else.

https://en.wikipedia.org/wiki/Symphony_No._6_(Beethoven) wrote:

[b][color=#0000FF]Part of a sketch by Beethoven for his Symphony No. 6[/color][/b]

---

<<The Symphony No. 6 in F major, Op. 68, also known as the Pastoral Symphony (German Pastoral-Sinfonie), is a symphony composed by Ludwig van Beethoven, and completed in 1808. One of Beethoven's few works containing explicitly programmatic content, the symphony was first performed in the Theater an der Wien on 22 December 1808[3] in a four-hour concert.

Fourth Movement: Allegro : Thunder. Storm.'

The fourth movement, in F minor, depicts a violent thunderstorm with painstaking realism, building from just a few drops of rain to a great climax with thunder, lightning, high winds, and sheets of rain. The storm eventually passes, with an occasional peal of thunder still heard in the distance. There is a seamless transition into the final movement. This movement parallels Mozart's procedure in his String Quintet in G minor K. 516 of 1787, which likewise prefaces a serene final movement with a long, emotionally stormy introduction.>>

Redbone wrote:From the provided Thunder link:

Thunder contains a somewhat cylindrical initial pressure shock wave along the lightning channel in excess of 10 times the normal atmospheric pressure. This shock wave decays rapidly into a sound wave within feet or meters. When thunder is heard from about 328 feet (100 m) distance, it consists of one large bang, yet hissing and clicking may be heard just prior to the bang (upward streamers). When heard at .6 mile (1 km) from lightning, thunder will rumble with several loud claps.

I've been within 100 meters of several lightning strikes and the above is an accurate description. What I don't understand or believe is how the hissing and clicking can be heard several seconds before the bang. Supposedly the shock wave generated by the lightning is supersonic but quickly decays into an ordinary sound wave. Surely that sound wave should arrive well before the hissing and clicking?

Ann wrote:Wowzers!!! :shock: :shock: :shock:

Chris, did you spot this monster storm in the distance?

heehaw wrote:I don't understand how charge-separation comes about in terrestrial clouds. And why does the same thing (apparently) not occur in interstellar clouds? Why don't we see cosmic lightning bolts going from one interstellar cloud to another? Or maybe they do occur, but only on distance scales too short for us to distinguish them with our telescopes?