thuyết trình lịch sử - sự phát triển của khoa học - kĩ thuật và văn hoá thế giới nữa đầu thế kỉ xx (3)

8










 !"#$%&%' ( )$*+',- 
Bi 22
/012345%657&%89:;<;=
>5?@A5BC9?%D


 !"#$%&'(%)(*
+,-.
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223
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56778
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FGHIJ&GJKKL
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"#$%&'()"*
+
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(34*
+

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+
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$ ?@AB
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#
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F*
+
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 92$@*
+I2 ?&J0+1
8,-5C-
 !"#$%&%' ( )$*+',- 
Bi 22
/012345%657&%89:;<;=
>5?@A5BC9?%D
-*K8LM
+3N2!L=O>2)*
+ 92$'PG1GHA"D
/0
1&223
&9
5:'5&
C*Q'&P'M
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N&*
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  !  U ET= OV )
F# H W V 2> O ) 1& @ W4 2)&
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Y!
  !  U ET= OV )
F# H W V 2> O ) 1& @ W4 2)&
S 2X $   '  ) H W
Y!
;:2<=>
Z'L2>O-5.[QS'(\++H+
 !"#$%&%' ( )$*+',- 
Bi 22
/012345%657&%89:;<;=
>5?@A5BC9?%D
-*K8LM
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+ 92$'PG1GHA"D
C*Q'&P'M
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T;'
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2`]^^2 ?
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2>&)#2#0#2>J**
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Bi 22
/012345%657&%89:;<;=
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-*K8LM
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Bi 22
/012345%657&%89:;<;=
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2b(JHST&)cL !&)*
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Ngày 6 và 9/8/1945, Mó ném bom nguyên tử xuống TP Hi-rô-shi-ma và Na-ga-
Ngày 6 và 9/8/1945, Mó ném bom nguyên tử xuống TP Hi-rô-shi-ma và Na-ga-
xa-ki (Nhật Bản).
xa-ki (Nhật Bản).
Trái cầu lửa : đường kính 280 m ,như 1 mặt trời nhỏ, sức nóng 4 -> 5.000
độ C, sáng gấp 10 lần Mặt trời xa 9 km vẫn nhìn thấy
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f"5&WVgTôi
hi vọng rằng nhân loại
sẽ rút ra được từ
những phát minh khoa
học nhiều điều tốt hơn
l điều xấu".
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Bi 22
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>5?@A5BC9?%D
-*K8LM
C*Q'&P'M
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-*Q9(E*
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^0
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C*N
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1
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Bi 22
/012345%657&%89:;<;=
>5?@A5BC9?%D
-*K8LM
C*Q'&P'M
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C*N
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2N0!O:
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 2FS;/
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 2FS;/

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Bi 22
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