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Wednesday, 2 January 2013

What's the Matter? Scared of a Little Lightning?



It was late afternoon when we set off back to Manji.  We had driven across to have lunch with my parents, my sister and her husband, their two children, and my brother-in-law’s parents.  They had all come down for the Christmas week.  It was a hot day, but fortunately as a beachside town, Busselton gets an early sea breeze.  After a leisurely and decidedly delicious lunch, accompanied by a glass of bubbles of course, our two young nephews opened their belated Christmas presents – remote controlled helicopter balls!  Then it was off to the beach for a swim.  The water was alluring with a bright mix of blue and turquoise and the bright afternoon sun made the surface sparkle intensely.  It was very refreshing as the mercury had just hit 38 degrees (just over 100 in the old scale).  Then it was a double serving of my mum's famous Christmas pudding before hitting the road.

As we approached the final turnoff to Manji a beautiful double rainbow appeared in the east, the direction we were about to turn.  As we drove along the beautiful Karri lined road, the double rainbow was ahead of us and the glorious rays of sun followed us from behind, sparkling in the high reaches of the Karri canopy.  The rain was nowhere to be seen!  

Double rainbow in the East.


Video courtesy of Princess Snapperhead

As we continued our journey eastwards, the rainbow suddenly vanished and the clouds were smouldering with a mysterious salmon colour directly ahead.  The golden sunset continued behind us whilst to the north east there was a sheet of grey clouds.  The feeling was extraordinarily eerie. 

Mysterious salmon-coloured clouds ahead.

Golden sunset behind us.

  







Suddenly, there was a strike of lightning in those gloomy grey clouds in the north east.  Perhaps the Mayans were a few days out.  Was this the end of the world? 













Standing on the veranda back in Manji the lightning intensified.  It was covering almost half the eastern side of the sky from north to south.  Although we could barely hear the thunder initially, it steadily intensified with each strike.  Keen to take my first opportunity to photograph a lightning storm, I seized my tripod, Canon 40D DSLR, and shutter release cable.  Daughter number three decided soon enough that she would be my trusty assistant.  Although I had not photographed lightning with my DSLR camera before I knew the basic principles.  The camera is mounted on the tripod so that long exposures can be obtained, and this requires the use of a shutter release cable for best results.  Most of these shots are 30 to 40 seconds of exposure.  Daughter number three was enthralled by the whole shoot that we did together.



As the storm got closer the wind started gathering force and each strike of lightning became more intense.  Eventually, the rain forced us back onto the balcony where we gazed intently at the awesome demonstration of nature’s power.  



And then it really pelted down!  The sound of the beating rain on the tin roof was like a thousand symphonies being played – all at the same time, quite discordant!
The lightning show lasted some three to four hours.  For how long the rain drenched the parched land we cannot be sure, for despite its discordance, its pulsing rhythm on the roof soon lulled us to sleep. 




Scared Potter?  A fear of thunder and lightning - that's called astraphobia, and is also known as astrapophobia, brontophobia, keraunophobia, or tonitrophobia.

Want to study thunder and lightning?  You would be a fulminologist!




Sunday, 2 December 2012

All Expectations Totally Eclipsed!



From Cairns in the far north east to the far south west between Perth and Albany.
My current work has me travelling backwards and forwards between Cairns, in the far north east corner of Queensland, and Manjimup, a 3.5 hour drive from Perth, in the far south west corner of Western Australia.  This is almost as far as one can get between two places in the vast continent that is Terra Australis.  I had ensured that I would be in Cairns for a rare total solar eclipse on November 14th 2012.  Rare in that full solar eclipses are an infrequent occurrence, and ├╝ber rare being in the city where one resides.  The next total solar eclipse in Cairns is April 26 2237! Quite some time away, I’m sure you will agree!

My first memory of a solar eclipse is from when I was in primary school, quite some time ago, apparently.  My memory is a little vague for the exact detail, but I do remember the various warnings regarding going blind.  I recall that it was an incredibly hot summer’s day in primary school.  Not quite the 40 degrees centigrade where we would be sent home, but surely close!  Of course we weren’t allowed to go outside at all in those days when it was happening.  Things have changed a lot since then, and the enlightened science department at our children’s school had made special arrangements for those interested to go to school early, i.e. 6 am to view it from there.  Some 60,000 people were estimated to have descended on Cairns to witness this astronomical phenomenon!  Flights were full, accommodation scant, and the hire car bays at the airport were bare.  The city was busy and there was excitement and anticipation everywhere.

Eclipse figure courtesy of Fred Espenak, NASA/Goddard Space Flight Center



As you may well know, a solar eclipse occurs when the moon passes between the earth and the sun.  The resultant shadow of the moon passes rapidly over the earth’s surface over several hours and many thousands of kilometres.  




Eclipse figure courtesy of Fred Espenak, NASA/Goddard Space Flight Center





During the course of the eclipse the moon may totally occlude the sun along a narrow central path, so called totality.  

 



Eclipse figure courtesy of Fred Espenak, NASA/Goddard Space Flight Center





A partial eclipse will be visible for long distances either side of this.  In this picture, the dark blue lines show the path of totality.  Starting in northern Australia it passes right across the Pacific ocean, almost reaching south America.  The light blue lines show the areas of partial eclipse.







To ensure a premium view from the beach and to snatch a rare chance to catch up with our good friends, the Le Sueurs, we invited ourselves over to stay the night.  Another couple had done the same, and so as the sun disappeared to prepare itself for its morning occultation by the moon, we enjoyed each other’s company and shared a few drinks and good food along the way.

In the days prior, the weather had been overcast with rain on several occasions.  There had been little opportunity to experiment with the solar filter for my camera that I had had to order from the USA.  For reasons unknown, I was unable to buy one in Cairns or even online in Australia.  The filter is made of the same material that the eclipse viewing glasses are made of and only lets 1/1000th of 1% of the light through.

We arose shortly after 5:15 am to ensure that we were well in place for the start of the eclipse at 5:45 am.  There were still some clouds lurking but there was blue sky as well and that lead to hope that it would clear for totality.  Our friends live at Holloway’s beach, some 10 minutes north of the city, and like all of the northern beaches it was ideally placed to view the eclipse.

A most beautiful Cairns sunrise!

The sunrise was spectacular as you can see above, but those pesky clouds weren’t done yet!  After a couple of shots of the sun through the filter (see below), I jagged a nice shot of the moon encroaching the upper rim of the sun.  And then those bothersome clouds covered everything for the next 40 minutes or so.  There were a few drops of rain here and there too.  This did allow for a fulfilling breakfast of coffee, hot croissants, and fresh fruit, which just hit the spot.

Sun through the filter
The start of the eclipse.
Those pesky and bothersome clouds regrouped!
Many had gathered to view the eclipse.

Savannah avoiding a brief sun shower.
Dorit and Savannah with their eclipse viewers.


I had been watching the direction and speed of the clouds, and according to my calculations, if there were no further clouds behind the current group, then we might be in luck!  As fate would have it, that is just what happened!  Still looking with our solar glasses, we viewed the final few minutes in astonishment as totality approached.  

The clouds were lifting - would we be lucky?

Yes, we would!
It rapidly became dark over the final 30-40 seconds and at the instant the moon completely ensconced the sun there was an eerie silence as all the birds stopped singing.  Tens of thousands of people surely gasped with awe during the two minutes of totality.  I was mesmerised.  We all were! 

Totality - note how dark it is!

In Mesoamerican mythology they referred to a total eclipse as the Black Sun and it had many mystical meanings.  One can only imagine the fear that ancient civilisations must have felt when the sun unexpectedly became black during the day!
Black sun at totality!

Totality - it lasted for just over two minutes.


At the moment totality ended I captured a beautiful shot known as the diamond ring!  Following this I was able to experiment a little more with exposure and shutter settings.  However, just as the clouds had miraculously parted for us to witness this stunning natural event, they started to drift back and cover the end of the eclipse.  We did not mind however, for what we had been fortunate enough to have observed that day in Cairns will forever etched on our minds.  Later we would find out indeed how lucky we were as some people only kilometres either side of us did not get to witness totality due to cloud hindrance.

The diamond ring effect!
 Little Mumu - will you marry me? <3 <3 <3
Immediately after totality ended - it became bright as quickly as it had become dark
The moon just kept sliding on by the sun

Last view as the clouds reconvened.

Le me watching the eclipse!
We spent the rest of the day jumping for joy at what we had seen.  Our youngest daughter Savannah had exclaimed afterwards that it was the most beautiful and exhilarating natural phenomenon that she had ever seen.  I would have to agree!  If viewing a total solar eclipse is not on your bucket list, then I would suggest that you add it – right now – for it is truly a sight to behold!  As for us, we are now umbraphiles!  Our next eclipse is in May 2013, an annular eclipse, several hundred kilometres north of us.  Why don't you join us?