߾
1. "߸Ҽ ִ ߸Ǿ." - (charls H,duell), ̱Ưû, 1899.
2. " ִ 峭ϻ, ġ ."
-丣 (ferdinand foch)屺, , 1 ɰ.
3. "츰 ʴ´. Ÿ 밡 ڱڴ ġ ´."
-ī ڵ, Ʋ źϸ, 1962.
4. 640kb ̸ 뷮̴. -1981
5. ü ̰ ִ ΰ? - 1968 IBM ڰ ũ Ĩ Ͽ.
6. " ǻ ." -ɳ ü(kenneth olsen),
Ʈ ڰ ȸ. 1977
7. ̷ ǻʹ 1.5 ̴.
-1949 popular mechanics . (б ް ϸ..)
8. "ΰ 鿩 . ̷ ƹ ϴ."
- Ʈ(lee de forest)ڻ, Ʃ(audion tube)߸,
ƹ, 1967 2 25.
9. "ڷ ó6 忡 ̴.
ڸ µ ܿ ̴."
-븱 ڴ(darryl.f.zanuck), 20 ȸ. 1946.
10. "ټ 鿡 ִ."
-̾ Ƶε(Ian ,macdonaldο, LA ǻ)
11. "ȭ ż ϱ ʹ ִ. ź
ġ ̾."
-' Ͼ(western union)'ι, 1876.
12. " ̴߽." -緹(ptolemy), Ʈ õ, 2.
13. ⺸ ſ ü ° Ұϴ. - 1895 м ̺
14. " ߴ ϵ Ͼ ʾҴ." - 3 ߿,
177674(̳ ̱ κ ̴.)
15. ֽ ŭ ö ̻ ̴.
- 1929 Ǽ ϴ а
1. - ֽ Ѵ.
2. ο - 鿡 ĸ ־ .
3. ٻϰ - ָ Դ´.
4. 簡 ְ Ծ Ѵٴ - 鿡 ־ Դ´.
5. ú - ָ Դ´.
6. Դ - 鿡ٰ ĿǸ Ÿ Ծ .
7. ⸦ - Ұ Դ´.
8. Ӱ - ƴ 缭 Դ´.
9. - þԴ´.
10. 踷 Ź ϰ - Դ´.
11. - ҿ ڽ ڽ ´.
12. Ǯ - ְ ٸٰ, ϴ ٶ ̾Ƽ Դ´.
춧-ƺ Ҽ ־.
ټ춧-ƺ ˰ ̴.
춧-ƺ ٸֵ ƺ ȶϼ̴.
춧-ƺ Ȯϰ ƴ° ƴϾ.
춧-ƺ ݰ Ȯ .
λ춧-ƺ װͿ ° 翬ϴ.
ƹ ϱ ʹ ̴.
춧-ƺ Ű澵 ʿ䰡 ƺ ʹ ̰ŵ.
ѻ춧-츮 ƺ?Ҵ ô뿡 ڶ.
ټ춧-ƺ װͿ ణ ˱ ϽŴ.
ۿ ° Ͽ ƿϱ.
춧-Ƹ ƹ ǰ ° ڴ.
ƹ ôϱ.
ټ춧-ƹ ƹ͵ ʰ Ǿ .
춧-ƹ ̷ ϼ ϴ Ѵ.
ƹ ŭ ϰ ô .
춧-ƹ 翡 ż ̸ 帱ִٸ ̵ ̴.
ƹ Ǹ ̴̼° ó ߴ ȸ.
ƹ ־µ ߴ.