Latest Activity

Da Munch replied to jelyot's discussion IDENTIFICATION of cyclists
"Interesting that cyclists were number 1. and drug use and bikie gangs were number 8. I hope they…"
2 hours ago
Andrew K replied to jelyot's discussion IDENTIFICATION of cyclists
"WTF? Is that encouraging vigilante behaviour? Was any guidance provided to the readership on…"
2 hours ago
Nat Buckley replied to Paul Jackson's discussion Pyrmont Bridge "trial" garden, good or bad?
"Helen, I'm not looking for an argument, and I don't want to waste time here.  None…"
4 hours ago
Bill Elder replied to jelyot's discussion IDENTIFICATION of cyclists
"Little snippet from the local precinct newsletter, the Premier is a member of the Safety and Place…"
5 hours ago
Tim replied to Colin's discussion Campbell St Cycleway Progress
"These are my thoughts also im afraid.  I live on Bourke street with the path at my front door…"
5 hours ago
Robflyte replied to Snowy_5's discussion Cycleways/SUP additions or extensions or upgrades.
"p23 Bernard, we are getting a shared path (one…"
5 hours ago
Neil Alexander commented on Bob Moore's photo
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View of the cement loader from Kauri Foreshore Hotel

"this cyclist flashed by just as I clicked Bl00dy photobomber!"
6 hours ago
Paul Martin replied to noelbike's discussion "Big" new oil discovery in WA not so big really.
"Agreed. "For the folk who can afford the transition" And this will make them easily…"
7 hours ago
Silvestro Severi is attending Allison Maher's event
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BIG RED RIDE SYDNEY at Bondi to Katoomba

November 16, 2014 all day
The Toughest One Day Ride Around! Cycling enthusiasts are once again set to take on the epic Big…See More
11 hours ago
Profile IconSilvestro Severi and Robert Ottelli are attending Elliot Richtor's event
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Spring Cycle at St Leonards Park

October 19, 2014 from 6:30am to 1pm
Spring Cycle is a long standing community cycling event that celebrates participation from all…See More
11 hours ago
Mark replied to Snowy_5's discussion Cycleways/SUP additions or extensions or upgrades.
"I'm looking forward to the new path it will cut out some hills and road riding for me some…"
15 hours ago
Phil Byrne replied to Guy Redden's discussion Separating pedestrians and cyclists in Parramatta Park
"I cycle through the park several times a week. I rarely ever do the full lap just different…"
15 hours ago

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Blog Posts

Lux and Lumens and bike lights

Posted by Robflyte on August 20, 2014 at 10:30am 0 Comments

Lux: a measurement of light taking area into account.

Lumens: total amount of light emitted from a source.



A 1000 lumen light source over directed over 1msq is 1000lux.

A 1000 lumen light source over 10msq is 100lux.



lux (with almost all bike lights) measured on the ground falls off with distance as the light spreads.



As a photographer using artifical lighting you understand light fall-off, the inverse square law, feathering.



most bike…

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Cycling on holidays

Posted by Helen Leung on August 18, 2014 at 4:43am 0 Comments

I'm currently on holidays in Europe. Just came back from a bike ride on the streets of Berlin. I just have to write down here that I have never felt so safe riding a bike as I have in Berlin! 

They were so far ahead of their times in WW2

Posted by Dabba on August 9, 2014 at 10:34am 6 Comments

This was taken at Duxford RAF Museum near Cambridge UK.

Where in the world is my bike?

Posted by Mark Lambert on August 8, 2014 at 9:47pm 11 Comments

The first correct answer wins a child.

 
 
 

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Current weather for Sydney at 12:50pm EST

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