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he could scientifically prove all the miracle<br />
cures Morning Light had<br />
accomplished.<br />
Tita loved to watch him work. With him there<br />
were always things to<br />
learn and discover, like now, when he was<br />
making matches and conducting<br />
a class on phosphorus and its properties at<br />
the same time.<br />
"Phosphorus was discovered in 1669, by<br />
lBrandt, a Hamburg chemist who<br />
was looking for the philosophers' stone. He<br />
believed that metal could<br />
be transmuted into gold by mixing it with<br />
extract of urine.<br />
Using this method, he obtained a luminous<br />
substance that burned with an<br />
intensity such as had never been seen<br />
before. For a long time<br />
phosphorus was obtained by vigorously<br />
heating the residue from<br />
evaporating urine in an earth retort the neck<br />
of which was submerged in<br />
water. Today it is extracted from the bones<br />
of animals, which contain<br />
phosphoric acid and lime."<br />
Talking didn't make the doctor careless in his<br />
preparation of the<br />
matches. He had no trouble separating<br />
mental and physical<br />
activities.<br />
He could philosophize about even the most<br />
profound aspects of life<br />
without his hands pausing or making a<br />
mistake. While he was talking to<br />
Tita, he kept on making matches.<br />
"Now that we have the phosphorus mixture,<br />
the next step is to prepare<br />
the cardboard for the matches. Dissolve a<br />
pound of potassium nitrate<br />
in a pound of water, stir in a little saffron to<br />
add color, and dip the<br />
cardboard in this solution. When it dries, cut<br />
the cardboard into<br />
narrow strips and place a little of the<br />
phosphorus mixture on the end<br />
of each strip. Allow the matches to dry,<br />
buried in sand."<br />
While the strips were drying, the doctor<br />
showed Tita an experiment.<br />
"While phosphorus doesn't combine with<br />
oxygen to burn at ordinary<br />
temperatures, it does burst into flame very<br />
rapidly at an elevated<br />
temperature; watch .<br />
The doctor placed a small amount of<br />
phosphorus in a tube that was<br />
closed at one end and full of mercury. He<br />
melted the phosphorus by<br />
holding the tube over the flame of a candle.<br />
Then, using a small bell<br />
jar containing oxygen, he transferred the gas<br />
to the jar very, very<br />
slowly. When the oxygen reached the top of<br />
the jar, where it<br />
encountered the melted phosphorus, an<br />
explosion occurred, brilliant,<br />
instantaneous, like a flash of lightning.<br />
"As you see, within our bodies each of us<br />
has the elements needed to<br />
produce phosphorus. And let me tell you<br />
something I've never told a<br />
soul. My grandmother had a very interesting<br />
theory; she said that each<br />
of us is born with a box of matches inside<br />
usbeen seen before. For a<br />
long time phosphorus was obtained by<br />
vigorously heating the residue<br />
from evaporating urine in an earth retort the<br />
neck of which was<br />
submerged in water. Today it is extracted<br />
from the bones of animals,<br />
which contain phosphoric acid and lime."