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| 00:43:21 0 |
MAGNET HANGING OVER COMPASS.
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| 00:43:25 4 |
A QUESTION MARK GROWS BIGGER.
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| 00:43:54 33 |
HANDS ROLL BAR MAGNET INTO METAL SHAVINGS.
SHAVINGS ALL OVER BAR MAGNET. MORE METAL SHAVINGS ATTRACTED TO MAGNET. PLACES OF CONCENTRATION, MAGNETIC POLES. MAGNETIC FIELD. |
| 00:44:32 71 |
ILLUSTRATIONS OF MAGNETIC FIELDS. COOL DESIGNS.
DRAWINGS OF MAGNETIC FIELDS. |
| 00:45:08 107 |
CU MAN'S HANDS PLAY WITH RUBBER BANDS.
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| 00:45:28 127 |
MAGNETIC EXPERIMENTS. EXPERIMENTS WITH MAGNETS NORTH & SOUTH ENDS MEET.
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| 00:46:09 168 |
HANDS PULL AT SPOOLS ON STRETCHED RUBBER BANDS
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| 00:46:16 175 |
ILLUSTRATION SHOWS TENSION OF MAGNETIC FORCE.
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| 00:46:47 206 |
HANDS PLAY WITH LITTLE MAGNETS, CROWDED WITH LINES OF FORCE. FORCES THE MAGNETS APART.
ILLUSTRATION FOLLOWS |
| 00:46:59 218 |
MAN BREAKS PIECE OF METAL WITH A HAMMER.
BROKEN BITS OF MAGNET BECOME COMPLETE MAGNET |
| 00:47:15 234 |
ANIMATED MAGNETIC EXPERIMENTS. CONSEQUENT POLES AIRPATH OF HIGH RELUCTANCE. IRONPATH OF LOW RELUCTANCE MAP
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| 00:49:04 343 |
MAN CONDUCTS EXPERIMENTS WITH MAGNETIC FIELDS, MAGNETISM. INDUCTED MAGNETISM. PUTS STEEL FILINGS INTO A TUBE. MOLECULES OF SOFT IRON. ILLUSTRATION IRON BAR. STEEL BAR.
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| 00:51:23 482 |
MAGNET OVER COMPASS. NORTH POLE. OPPOSITE POLE.
SOUTH POLE. |
| 00:52:07 526 |
GLOBE ILLUSTRATES EARTH'S MAGNETIC PULL. NORTH GEOGRAPHIC POLE. IRON DEPOSITS.
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| 00:53:02 581 |
POINTER ON MAP. SHOWING IRON DEPOSITS. MAGNETIC LINES. DISTORTION DUE TO IRON DEPOSITS. LINES OF VARIATION. ISOGONIC LINES
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| 00:54:46 685 |
MAN CONDUCTS MAGNETIC EXPERIMENT.
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| 00:55:14 713 |
CU SPINNING COMPASS
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| 00:55:29 728 |
ILLUSTRATION SHOWING COMPASS NEEDLE ALIGNING WITH EARTH'S MAGNETIC LINES.
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| 00:56:03 762 |
CHINESE BOATS AT SEA. 1920s.
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| 00:56:16 775 |
CU COMPASS.
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| 00:56:22 781 |
LAND SURVEYOR LOOKING INTO SURVEYING MACHINE.
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| 00:56:34 793 |
SAILOR STEERING BOAT.
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| 00:56:50 809 |
PILOT IN PLANE. 1920;S
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| 00:57:01 820 |
HUGE ELECTRIC GENERATOR
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| 00:57:04 823 |
CU OLD FASHIONED TELEPHONE.
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| 00:57:08 827 |
CU 1920s RADIO
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| 00:57:10 829 |
SPACE, STARS.
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