(n) German physicist who with James Franck proved the existence of the stationary energy states postulated by Bohr (1887-1975), Syn.Gustav Hertz, Gustav Ludwig Hertz
n. [ from the German physicist Heinrich Hertz. ] a unit of frequency equal to one cycle per second; it is abbreviated Hz. It is commonly used to specify the frequency of radio waves, and also the clock frequencies in digital computers. For these applications, kilohertz and megahertz are the most commonly used units, derived from hertz. [ PJC ]
a. Of or pert. to the German physicist Heinrich Hertz. [ Webster 1913 Suppl. ]
Hertzian telegraphy, telegraphy by means of the Hertzian waves; wireless telegraphy. -- H. waves, electric waves; -- so called because Hertz was the first to investigate them systematically. His apparatus consisted essentially in an oscillator for producing the waves, and a resonator for detecting them. The waves were found to have the same velocity as light, and to undergo reflection, refraction, and polarization. [ Webster 1913 Suppl. ]
แสดงได้ทั้งความหมายของคำเดี่ยว และคำผสม ได้อย่างถูกต้อง
เช่น Secretary of State=รัฐมนตรีต่างประเทศของสหรัฐฯ (ในภาพตัวอย่าง),
High school=โรงเรียนมัธยมปลาย
