physics for entertainment - y. perelman (10 mb pdf) - Arvind Gupta

221 Pages·2006·9.59 MB·English

TRANSLATEDFROMTHERUSSIANBY
SHKAROVSKY
A.
DESIGNEDBY L. LAMM
CONTENTS
From thr Authors Foreword to the 13th Edition 9
Chapter One
SPEED AND VELOCITY. COMPOSITION OF MOTIONS
HOW FAST 1)0 WE MOVE? !3
RACING AGAINST TIME 16
THE THOUSANDTH OF A SECOM) 17
THE SLOW-MOTION CAMERA 20
WHEN WE MOVE ROUND THE SUN FASTER 21
THE CART-WHEEL RIDDLE 22
THE WHEEL'S SLOWEST PART
1!4
BRAIN-TEASER 24
WHERE DID THE YACHTCAST OFF? r>
Chapter Two
GRAVITY AND WEIGHT. LEVERS. PRESSURE
TRY TO STAND UP! 28
WALKING AND RUNNING 30
HOW TO JUMP FROM A MOVING CAR . . . 3,1
CATCHING A BULLET 35
MELON AS BOMB 35
HOW TO WEIGH YOURSELF 38
WHERE ARE THINGS HEAVIER? 38
HOW MUCH DOES A FALLING BODY WEIGH? 40
FROM EARTH TO MOON 41
FLYING TO THE MOON: JULES VERNE VS. THE
TRUTH 44
FAULTY SCALES CAN GIVE RIGHT WEIGHT 46
.
STRONGER THAN YOU THINK 47
WHY DO SHARP THINGS PRICK? 48
-COMFORTABLE BED ... OF ROCK 49
Chapter Three
ATMOSPHERIC RESISTANCE
BULLET AND AIR 51
BIG BERTHA 52
WHY DOES A KITE FLY? 53
LIVE GLIDERS 54
BALLOONING SEEDS 55
DELAYED PARACHUTE JUMPING 56
THE BOOMERANG 57
Chapter Four
ROTATION. "PERPETUAL MOTION" MACHINES
HOW TO TELL A BOILED AND RAW EGG APART? 60
WHIRLIGIG 61
INKY WHIRLWINDS 62
THE DELUDED PLANT 63
"PERPETUAL MOTION" MACHINES 64
"THE SNAG" 67
"IT'STHEMBALLSTHAT DO IT" 68
UFIMTSEV'S ACCUMULATOR 70
"A MIRACLE, YET NOT A MIRACLE" 70
MORE "PERPETUALMOTION"MACHINES ... 72
THE "PERPETUAL MOTION" MACHINE PETER
THE GREAT WANTED TO BUY 73
Chapter Five
PROPERTIES OF LIQUIDS AND GASES
THE TWO COFFEE-POTS 77
IGNORANCE OF ANCIENTS 77
LIQUIDSPRESS ... UPWARDS 79
WHICH IS HEAVIER? .80
A LIQUID'S NATURAL SHAPK 81
WHY IS SHOT ROUND? 81*
THE "BOTTOMLESS" WINEGLASS .84
. . .
UNPLEASANT PROPERTY 85
THE UNSINKABLE COIN .87
CARRYING WATER IN A SIEVE .... 88
FOAM HELPS ENGINEERS 81)
FAKE "PERPETUAL MOTION" MACHINE 90
. . .
BLOWING SOAP BUBBLES .92
THINNEST OFALL
<),>
WITHOUT WETTING A FINGKH 97
HOW WE DRINK 98
A BETTER FUNNEL 98
A TON OF WOOD AND A TON OF IRON .... 99
THE MAN WHO WEIGHED NOTHING 99
"PERPETUAL" CLOCK 10*
Chapter Six
HEAT
WHEN IS THE OKTYABRSKAYA RAILWAY LONG-
ER? 106
UNPUNISHED THEFT 107
HOW HIGH IS THE EIFFEL TOWEH? .... 108
FROM TEA GLASS TO WATER GAUGE .... 109
THE BOOT IN THE BATHHOUSE 110
HOW TO WORK MIRACLES Ill
SELF-WINDING CLOCK 113
INSTRUCTIVE CIGARETTE 115
ICE THAT DOESN'T MELT IN BOILING WATER 115
ON TOP OR BENEATH? 116
DRAUGHT FROM CLOSED WINDOW 117
MYSTERIOUS TWIRL 117
DOES A WINTER COAT WARM YOU? 118
THE SEASON UNDERFOOT 119
PAPER POT 120
WHY IS ICE SLIPPERY? 122
THE ICICLES PROBLEM 123
Chapter Seven
LIGHT
TRAPPED SHADOWS 126
THE CHICK IN THE EGG 128
PHOTOGRAPHICCARICATURES 128
THE SUNRISE PROBLEM 130
Chapter Eight
REFLECTION AND REFRACTION
SEEING THROUGH WALLS 132
THE SPEAKING HEAD 134
IN FRONT OR BEHIND 135
IS A MIRROR VISIBLE? 135
IN THE LOOKING-GLASS 135
MIRROR DRAWING 137
SHORTEST AND FASTEST 138
AS THE CROW FLIES 139
.