| Benjamin Franklin - 1821 - 232 Seiten
...will be quite hot to the touch, the white still cool. Another: Try to fire paper with a burning-glass. If it is white, you will not easily burn it; but if...in a black mug set before the fire, than in a white un' ' , or in a bright silver tankard. My experiment was this: I took a number of little square pieces... | |
| 1825 - 314 Seiten
...out equally wet, dry in the sun much sooner than the white, being more readily heated by the su;-'s rays. It is the same before a fire, the heat of which...sooner penetrates black stockings than white ones, and is apt sooner to burn a man's shins. Aleo beer much sooner warms in a black mug set before the fire,... | |
| 1839 - 230 Seiten
...quite hot to the touch, and the white still cool. Try to fire paper with a burning-glass ; if it be white, you will not easily burn it ; but if you bring...sooner warms in a black mug set before the fire than a white one, or in a bright silver tankard. Take a number of little square pieces of cloth from a tailor's... | |
| Endless amusement - 1820 - 232 Seiten
...fullers and dyers find black cloths, of equal thickness with white ones, and hung out equally wet, dryin the sun much sooner than the white, being more readily...sooner warms in a black mug set before the fire, than a white one, or in a bright silver tankard. Take a number of little square pieces of cloth from a tailor's... | |
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