IṢẸ́ ỌNÀ
ẸWÀ ÀTI ÌLERA
IṢẸ́ ỌWỌ́
ÀṢÀ ÀTI ÌTÀN
ÌṢERÉ
ÀYÍKÁ
OÚNJẸ ÀTI OHUN MÍMU
REVERSE ENGINEERING
SÁYẸ́ǸSÌ
ERÉ ÌDÁRAYÁ
ÌMỌ̀-Ẹ̀RỌ
ÀWỌN OHUN WÍWỌ̀
Oxygen from Green Leaves under Water in Sunshine (Ingenhousz 1779)
Living leaves make oxygen in light. Put fresh leaves in a clear jar of water, stand it upside down in a tub of water in the sun, and the bubbles that rise from the leaves collect at the top of the jar.
Result: 'dephlogisticated air' (oxygen), more or less pure according to the plant and the clearness of the day. A candle flame grows larger and dazzling in it.
Source: Jan Ingen-Housz, Experiments upon Vegetables (1779), pp. 14-16, 28-30 and lviii. Not given: number of leaves, jar size, time. Picture drawn by Youblob.
Olùbẹ̀rẹ̀
1 day
Ìlànà
1
1
Pick leaves in daylight
Pick leaves in daylight
Take leaves from trees or plants in the middle of a warm day and put them straight into cold fresh pump water. Leaves taken this way bubble quickest and give the best air.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Ewé (púpọ̀)1 as requiredÀwọn irinṣẹ́ tí a nílò:
Omi2
2
Set the jar upside down in water
Set the jar upside down in water
Put the leaves in a very clear glass jar filled with fresh pump water. Stand the jar upside down in a tub full of the same water.
Àwọn irinṣẹ́ tí a nílò:
Agbada Afẹ́fẹ́ pẹ̀lú Àwọn Ìgò GáàsìOmi3
3
Put it in the sun
Put it in the sun
Set it at once in the open air, best in the sunshine. Bubbles form on the leaves, grow, break away and gather at the top of the jar, until the leaves are spent. Light does it, not warmth: by the fire, in shade or in a warm room without sun the air is bad.
Àwọn irinṣẹ́ tí a nílò:
Agbada Afẹ́fẹ́ pẹ̀lú Àwọn Ìgò Gáàsì4
4
Test with a candle
Test with a candle
Plunge a candle flame into the gathered air: in dephlogisticated air it grows larger and dazzlingly bright.
Àwọn irinṣẹ́ tí a nílò:
Àbẹ́làÀwọn ohun-èlò
1- 1 as requiredÀyè
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