A table (Smith, 2007) showing the typical 16-elements, namely CHNOPS plus 10 additional elements, that defined the material nature of plants. [1] |
Overview
In c.1615, Johann Helmont conducted his famous oak tree growing experiment, similar to what Leonardo da Vinci is said to have done with pumpkins in the 15th century:
Helmont he found that 98 percent of the grown oak, when burned, gets converted into “gas”, a term he coined.
See also
● Vegetable life
● Goethe on evolution
References
1. Smith, Kevin T. (2007). “Plants Essential Chemical Elements” (pdf), American Nurseryman, 206(10):10-11.
External links
● Plant – Wikipedia.