Tahukah Anda Ketuhar Microwave Tercipta Secara Kebetulan?

Hari ini, boleh dikatakan setiap rumah ada ketuhar gelombang mikro (Mikrowave). Sebelum itu, pernahkah anda terfikir siapa penciptaannya? Sebenarnya, ketuhar gelombang mikro tercipta hasil inovasi radar pengesan pesawat pengebom. Percy Spencer adalah penciptanya. Beliau menemui idea membina ketuhar...

By: sentiasapanas

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