Schishuney / fishing place with a pole / Waldron Island

Dusk o’ June, MMIX

Jelte Harnmeijer

Center for Astrobiology & Early Earth Evolution

University of Washington /

National Aeronautical and Space Administration

L i f e

- Gratitude in a Word -

“Dhanje-bhat”

- Science | Religion, Truth & Method -

- Space, Time & Consciousness -

- Geological Time -

- The Birth of our Home, Earth -

(A) Isua (3.8 Ga) (B) Pilbara (3.5 Ga) (C) Barberton (3.5 Ga)

- The Oldest Rocks -

you

- And what of Life? -

-Entropy –

- Organization –

- Order –

- Complexity –

dSdt

dS is the incremental change in Entropy

dt is the incremental change in time

0

-The Second Law of Thermodynamics –

“Entropy in the Universe always increases”

Nutrients Waste products

Low Entropy High Entropy

- Life is a Struggle against Entropy –

Low Entropy High Entropy

Nutrients Waste products

- Life is a Struggle against Entropy –

- Death –

- Isotopes –

Example: Carbon12C 13C

protonneutron

‘light’ ‘heavy’

Negative δ13C = mostly ‘light’ carbonPositive δ13C = mostly ‘heavy’ carbon

CO2 + H2O -> O2 + CH2O

- Biosynthesis –

- Let’s get back to the rocks! –

- Australia –

- Australia –

- Australia –

10 km2003 biomarker sample2004 biomarker sample

- Australia –

- Greenland –

- Greenland –

- Greenland –

- Greenland –

- Carbon Isotopes –

- An Unexpected Surprise –

- An Unexpected Surprise –

- Fossils (!) –

- Fossils (!) –

{e-mail} Jelte.Harnmeijer @ gmail.com

{blog} http://www.realfuture.org

- Please stay in touch -