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)

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

དངོས་ཁམས་རིག

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)

Bore and Tone Holes: A Hole Can Be Made Bigger and Not Smaller

The Soundboard: A String Alone Is Almost Silent

Placing the Frets: The Rule of 18 Is Wrong, and by How Much

What Sets the Pitch: Length, Tension, Mass, and Nothing Else

Listening to a Machine: Noise, Heat and Play Are All Telling You Something

Keeping It Together: Shoulders, Keys, Circlips and What Each One Resists

Balance: A Tiny Eccentricity Becomes an Enormous Force

Belts and Chains: Tension, Wrap, and Why Too Tight Kills the Bearings

Alignment: Two Shafts That Look In Line Are Not In Line

Lubrication: The Film Does the Work, and More Grease Is Not More Lubrication

Mounting a Bearing: Press on the Ring That Is Being Fitted, Never Through the Balls

Fits: Clearance, Transition and Interference — the Difference Is Microns

The Notebook: Write a Page Somebody Else Can Repeat

Timing by Hand: Your Reaction Time Is the Biggest Error in the Experiment

Plot It Before You Conclude: What a Table of Numbers Hides

Significant Figures: How Much of Your Number Is Actually Real

Random or Systematic: Two Ways to Be Wrong, and Only One of Them Averages Away

Change One Thing at a Time: Grow the Control, and the Confounded Jar Too

Zero, Tare and the Blank: Measure What Your Instrument Reads When It Should Read Nothing

One Reading Is Not a Measurement: Repeat It, and Look at the Spread

Drawing Out: Making It Longer by Making It Thinner

What Heat Costs: Scale, Grain Growth and Burnt Steel

The Surface Is Not the Centre: Thermal Mass and Soak Time

Measuring High Temperature: Thermocouples, Pyrometers, and What Each Lies About