མཛེས་སྡུག་དང་བདེ་ཐང

རིག་གནས་དང་ལོ་རྒྱུས

ཟས་དང་བཏུང་རྫས

ཕྱིར་འཕྲུལ་རིག

དངོས་ཁམས་རིག

བིལུ་པིརིན་ཊི ༧༦༤ ཡོད • ཡན་ལག་དབྱེ་རིམ ༡༥

ཡན་ལག་དབྱེ་རིམ་ལྟ་བཤེར

བིལུ་པིརིན་ཊི (༧༦༤)

764 ནང་ལས་ 24 སྟོན་དོ།

དངོས་ཁམས་རིག

ཡན་ལག་དབྱེ་རིམ་ལྟ་བཤེར

དྲོད་ནུས་རིག

འོད་རིག

འབྲེལ་བ

རྡུལ་ཕྲན

དངོས་རྫས་རིག

རྡུལ

མདོངས་རིག

རྡུལ་ནུས

བཟོ་རྫས་གསར

འཕྲུལ་རིག

ཆུ་འཕྲུལ་རིག

གློག་ཁབ་རིག

དྭངས་ཤེལ་རིག

སྐར་དངོས་རིག

སྒྲ་རིག

བིལུ་པིརིན་ཊི (༧༦༤)

Electricity From the Wind: The Cube Law and a Rotor on a Dynamo

Fins and the Heat Sink: A Fin That Is Too Long Does Nothing

The Heat Pipe: Evaporation, Condensation and a Wick That Pumps

The Rotary Regenerator: Store Heat in a Wheel and Carry It Across

The Plate Heat Exchanger: Thin Plates, Turbulence, and a Frame You Can Open

Counterflow: The Same Area Does More When the Streams Run Opposite

The Radiator: Mostly Convection, and Why Temperature Is Everything

The Water-Tube Boiler: Put the Water in the Tubes

The Economiser: The Heat Still Going Up the Chimney

The Fire-Tube Boiler: Surface, Not Fire, Makes Steam

The Heat of Compression: Why Compressed Air Is Hot and Wet

The Air-Operated Double-Diaphragm Pump: It Stalls Instead of Bursting

The Screw Compressor: A Built-In Ratio, and the Cost of the Wrong One

The Progressing-Cavity Pump: One Thread Fewer, and Nothing Is Squeezed

The Liquid-Ring Pump: The Water Is the Piston

The Scroll Compressor: Two Spirals, One Orbiting, No Valves

The Steam Injector: Feeding a Boiler With Its Own Steam

The Centrifugal Pump: Speed Squared, and Why It Cannot Lift Air

Reciprocity Failure: A One Minute Exposure Is Not One Minute

Depth of Field: Only One Distance Is Actually in Focus

The Exposure Triangle: A Stop Is a Factor of Two

Temperament: Twelve Fifths Do Not Fit in Seven Octaves

Reeds That Speak: Beating, Double and Free

Heads and Tension: Why a Drum Has a Pitch You Can Argue About