3. MEDICINE
1 . W H I T X R A Y S W E C A N S E E I N S I D E T H E B O D Y .
2 . W H I T A N T I B I O T I C S W E C A N S T O P I N F E C T I O N S
C A U S E D B Y B A C T E R I A .
3 . W H I T V A C C I N A T I O N S W E C A N P R E V E N T S O M E
I L L N E S S E S .
4. TRANSPORT
S O M E T R A N S P O R T S L I K E T R A I N S , C A R S ,
P L A N E S … . P E T R O L I U M M A K E T H E M W O R K .
N O W T H E Y A R E T E C H N O L O G I C A L T R A N S P O R T S .
5. Industry and energy
1. THE STEAM ENGINE MADE MACHINES WORK MORE
QUICKLY.
2. THE ELECTRICITY MOTOR REVOLUTIONISINED
MACHINES IN INDUSTRY AND IN HOMES
6. COMMUNICATIONS
W E C A N C O M U N I C A T E W I T H A N O T H E R P E R S O N
W H I T H :
C O M P U T E R T E L E P H O N E M O B I L E T A B L E T
P H O N E
