James Clerck Maxwell membuat serangkaian percobaan dengan menggunakan proyektor cahaya dan penapis (filter) berwarna. 3 buah proyektor yang telah diberi penapis (filter) warna yang berbeda disorotkan ke layar putih di ruang gelap. Penumpukan dua atau tiga cahaya berwarna ternyata menghasilkan warna cahaya yang lain (tidak dikenal) dalam pencampuran

Wooden surfaces in many cases are suffering from the presence of pores and unevenness, which often can detract from the general visual appearance and high-quality of the Wooden. Pores are compact openings during the Wooden which might be a result of several different things, such as the form of wood, the age from the Wooden, and how it had been Low

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Cats are interesting creatures with sophisticated behaviors that can from time to time be misunderstood by their human companions. Knowing cat actions is important for creating a potent bond with all your feline Close friend and providing them with the best treatment probable. Just about the most frequent behaviors exhibited by cats is kneading, in

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