l plater
Einstein
Walking along the beach reminds me of a question Albert Einstein once posed to another physics nerd:
Why is wet sand a 'hard' surface to walk on whereas dry sand and sand under water are 'soft'. The answer is due to the effects of surface tension.
Bongin Bongin Bay, Northern Beaches, Sydney (Saturday 21 Jun 2008 @ 7:29am).
ISO100 | f/11 | 1/8sec | 17mm | eval.metering | AWB | raw | GND4 + grad tobacco filters | tripod | remote shutter release
Einstein
Walking along the beach reminds me of a question Albert Einstein once posed to another physics nerd:
Why is wet sand a 'hard' surface to walk on whereas dry sand and sand under water are 'soft'. The answer is due to the effects of surface tension.
Bongin Bongin Bay, Northern Beaches, Sydney (Saturday 21 Jun 2008 @ 7:29am).
ISO100 | f/11 | 1/8sec | 17mm | eval.metering | AWB | raw | GND4 + grad tobacco filters | tripod | remote shutter release