The recipe for Dr Walsh

I've just posted a video from our recent trip to Dublin.

Midway through the video (below), Dr Darren Walsh uses a clever contraption to count the atoms in his body (based on his weight).

A few people have asked to see the full details in the list.

Dr Walsh has kindly supplied it.



Oxygen Mass: 41.925 kg Atoms: 1.578273 x 10^27
Carbon Mass: 11.61 kg Atoms: 5.821916 x 10^26
Hydrogen Mass: 6.45 kg Atoms: 3.854385 x 10^27
Nitrogen Mass: 1.935 kg Atoms: 8.320665 x 10^25
Calcium Mass: 967.5 g Atoms: 1.453978 x 10^25
Phosphorus Mass: 645 g Atoms: 1.254234 x 10^25
Potassium Mass: 161.25 g Atoms: 2.484017 x 10^24
Sulphur Mass: 161.25 g Atoms: 3.028875 x 10^24
Sodium Mass: 96.75 g Atoms: 2.534716 x 10^24
Chlorine Mass: 96.75 g Atoms: 1.643656 x 10^24
Magnesium Mass: 32.25 g Atoms: 7.991844 x 10^23
Iron Mass: 0.387 g Atoms: 4.174249 x 10^21
Fluorine Mass: 2.3865 g Atoms: 7.565841 x 10^22
Zinc Mass: 2.064 g Atoms: 1.901418 x 10^22
Silicon Mass: 1.29 g Atoms: 2.766434 x 10^22
Rubidium Mass: 0.2967 g Atoms: 2.090874 x 10^21
Strontium Mass: 0.2967 g Atoms: 2.039516 x 10^21
Bromine Mass: 0.18705 g Atoms: 1.409945 x 10^21
Lead Mass: 0.10965 g Atoms: 3.187365 x 10^20
Copper Mass: 0.0645 g Atoms: 6.113421 x 10^20
Aluminium Mass: 0.056115 g Atoms: 1.252637 x 10^21
Cadmium Mass: 0.04644 g Atoms: 2.488263 x 10^20
Cerium Mass: 0.036765 g Atoms: 1.580373 x 10^20
Barium Mass: 0.019995 g Atoms: 8.769378 x 10^19
Tin Mass: 0.01548 g Atoms: 7.854101 x 10^19
Iodine Mass: 0.01032 g Atoms: 4.897965 x 10^19
Titanium Mass: 0.008385 g Atoms: 1.055066 x 10^20
Boron Mass: 0.044505 g Atoms: 2.479453 x 10^21
Selenium Mass: 0.012255 g Atoms: 9.348007 x 10^19
Nickel Mass: 0.00903 g Atoms: 9.266406 x 10^19
Chromium Mass: 0.001548 g Atoms: 1.793135 x 10^19
Manganese Mass: 0.010965 g Atoms: 1.202121 x 10^20
Arsenic Mass: 0.01677 g Atoms: 1.348152 x 10^20
Lithium Mass: 0.0019995 g Atoms: 1.735051 x 10^20
Mercury Mass: 0.012255 g Atoms: 3.679738 x 10^19
Caesium Mass: 0.0013545 g Atoms: 6.138313 x 10^18
Molybdenum Mass: 0.008385 g Atoms: 5.262907 x 10^19
Germanium Mass: 0.008385 g Atoms: 6.953443 x 10^19
Cobalt Mass: 0.0013545 g Atoms: 1.384305 x 10^19
Antimony Mass: 0.007095 g Atoms: 3.509624 x 10^19
Silver Mass: 0.000645 g Atoms: 3.601465 x 10^18
Niobium Mass: 0.1032 g Atoms: 6.690322 x 10^20
Zirconium Mass: 0.387 g Atoms: 2.55514 x 10^21
Lanthanum Mass: 0.00903 g Atoms: 3.915446 x 10^19
Tellurium Mass: 0.00774 g Atoms: 3.65345 x 10^19
Gallium Mass: 0.00774 g Atoms: 6.686175 x 10^19
Yttrium Mass: 0.007095 g Atoms: 4.806566 x 10^19
Bismuth Mass: 0.007095 g Atoms: 2.044842 x 10^19
Thallium Mass: 0.007095 g Atoms: 2.090835 x 10^19
Indium Mass: 0.0001806 g Atoms: 9.473721 x 10^17
Gold Mass: 0.00903 g Atoms: 2.761265 x 10^19
Scandium Mass: 0.00903 g Atoms: 1.209801 x 10^20
Tantalum Mass: 0.00903 g Atoms: 3.00571 x 10^19
Vanadium Mass: 0.01677 g Atoms: 1.982778 x 10^20
Thorium Mass: 0.00008385 g Atoms: 2.17649 x 10^17
Uranium Mass: 0.00008385 g Atoms: 2.121711 x 10^17
Samarium Mass: 0.00000645 g Atoms: 2.583689 x 10^16
Tungsten Mass: 0.00000645 g Atoms: 2.113161 x 10^16
Beryllium Mass: 0.000003225 g Atoms: 2.155324 x 10^17
Radium Mass: 0.00000000000000645 g Atoms: 1.718954 x 10^07

And here is the automatically generated pic of Dr Walsh on the scales at Science Gallery!