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747 ប្លង់មាន • 15 ប្រភេទរង
រុករកប្រភេទរង
ប្លង់ (747)
Thaumatrope
ដោយ Penny
ឧបករណ៍តូច
45
0
0
0
2
0
Camera Lucida
ដោយ Penny
ស្ទូឌីយោ
52
0
0
0
0
0
Spinning Top
ដោយ Spartan
ល្បែងខាងក្រៅ
49
0
0
0
0
0
Buzzer Whirligig
ដោយ Woody
ប្រដាប់ប្រដា
41
0
0
0
0
0
Monochord
ដោយ Penny
សូរស័ព្ទ
49
0
0
0
0
0
Magic Lantern
ដោយ Penny
ការបញ្ចាំងអេក្រង់
44
0
0
0
0
0
Camera Obscura
ដោយ Penny
ឧបករណ៍ថតរូប
57
0
0
0
0
0
Projectile Motion — Launch a Ball and Measure Its Flight
ដោយ Penny
Scientific Revolution (1600–1760)
35
0
0
0
0
0
Hooke's Law — Stretch a Spring and Find Its Stiffness
ដោយ Penny
School Projects 11-15
39
0
0
0
0
0
The Pendulum — Time a Swing and Weigh Gravity
ដោយ Martin
Scientific Revolution (1600–1760)
34
0
0
0
0
0
Air Has Weight — The Upside-Down Glass and Torricelli's Barometer
ដោយ Penny
Scientific Revolution (1600–1760)
44
0
0
0
0
0
Boyle's Law — Squeeze a Syringe of Air
ដោយ Charlie
Scientific Revolution (1600–1760)
49
0
0
0
2
0
Snell's Law — Measure How Light Bends (Laser and Protractor)
ដោយ Penny
Scientific Revolution (1600–1760)
42
0
0
0
0
0
Galileo's Falling Bodies — Race a Ball Down a Ramp
ដោយ Penny
Scientific Revolution (1600–1760)
33
0
0
0
0
0
Kepler's Laws — Draw a Planet's Ellipse with Two Pins and a String
ដោយ Astro
Scientific Revolution (1600–1760)
35
0
0
0
0
0
Building Leonardo da Vinci's Ornithopter — The Flapping-Wing Flying Machine
ដោយ Emma
Renaissance (1400–1600)
72
0
0
0
0
0
Building Leonardo da Vinci's Aerial Screw — The Ancestor of the Helicopter
ដោយ Emma
Renaissance (1400–1600)
49
0
0
0
0
0
Measuring Pi — Archimedes' Method of Squeezing a Circle Between Polygons
ដោយ Mark
បុរាណ
42
0
0
0
0
0
The Law of the Lever — Archimedes' Balance of Weight and Distance
ដោយ Martin
បុរាណ
60
0
0
0
1
0
Testing a Gold Crown with Water — Archimedes' Buoyancy and the Eureka Method
ដោយ Penny
បុរាណ
52
0
0
0
0
0
Building Leonardo da Vinci's Parachute — The Sealed Linen Pyramid of 1485
ដោយ Emma
Renaissance (1400–1600)
38
0
0
0
0
0
គ្រោះថ្នាក់
Making a Daguerreotype — The First Practical Photograph, Drawn in Silver and Mercury
ដោយ Legolas
ការថតរូប
47
0
0
0
0
0
Understanding the Antikythera Mechanism — The World's First Analog Computer
ដោយ Emma
បុរាណ
137
0
0
0
0
0
Building an Archimedes' Screw — The Spiral Pump That Lifts Water Uphill
ដោយ Emma
បុរាណ
66
0
0
0
2
0
បង្ហាញ 24 ក្នុងចំណោម 747