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| Grease may be removed from silk and woolen clothes by the use of magnesia. Scrape a quantity upon the spot, cover with a brown paper and place a hot flat-iron over it. The heat of the iron acts upon the magnesia and when the iron and the paper are ... Read more of 134. To Remove Grease from Silk at Home Medicine.ca | Informational Privacy |
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To Represent A Storm At SeaProvide two strips of glass, whose frames are thin enough to admit both strips freely into the groove of the lantern. On one of these glasses paint the appearance of the sea from a smooth calm to a violent storm. Let these representations run gradually into each other, as in Fig. 9, and you will of course observe, that the more natural and picturesque the painting is, the more natural and pleasing will be the reflection. On the other glass, Fig. 10, paint various vessels on the ocean, observing to let that end where the storm is, appear in a state of violent commotion, and the vessels as if raised on the waves in an unsettled position, with heavy clouds about them. You then pass the glasses slowly through the groove, and when you come to that part where the storm is supposed to begin, move them gently up and down, which will give the appearance of the sea and vessels being agitated; increase the motion till they come to the height of the storm. You will thus have a very natural representation of the sea and ships in a calm and storm; and as you gradually draw the glasses back, the tempest will subside, the sky appear clear, and the vessels glide gently over the waves. By the means of two or three glasses, you may also represent a battle on land, or a naval engagement, with a variety of other pleasing experiments. Next: To Produce The Appearance Of A Spectre On A Pedestal In The Middle Of Previous: Of Painting The Glasses
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