: Triple points and critical points for gases. How to Evaluate and Read Physics Tables
The National Institute of Standards and Technology (NIST) provides a completely free, highly accurate online database of all fundamental physical constants.
Move further right to the "Mean Difference" section under the fourth digit ( ). Add this value to your noted number.
: Its compact size makes it a preferred "handbook" for laboratory work and technical studies. Common Criticisms (Cons)
: Use the row and column corresponding to your number's first few digits.
, is a classic reference book used by physics and mathematics students to find logarithmic values, trigonometric functions, and physical constants. While many versions exist online, users typically look for a "free PDF" to access these standardized values for calculations. 1. Identify key contents
| Question | Answer | |----------|--------| | | Yes, unless the uploader has explicit permission from the copyright holder. Most of those PDFs are unauthorized copies. | | Can I print the free NIST constants PDF and use it as a substitute? | Absolutely. The NIST tables are the authoritative source for constants and are freely redistributable. | | What if I need the exact “layout” of Clark’s Table for an exam? | Check your course syllabus. Many professors accept any reliable source of constants; if they specifically require Clark’s format, ask them for a legal copy or request that they provide the table themselves. | | Do mobile apps provide the same data? | Yes. Apps such as Physics Constants (iOS) and Physical Constants (Android) pull data from CODATA and are free. | | How often are the constants updated? | CODATA releases new recommended values roughly every four years (e.g., 2018, 2022). Keep an eye on the NIST website for the latest version. |
Historically, tables containing physical data were often bound in physical books. The most famous, the "Tables of Physical and Chemical Constants" by G.W.C. Kaye and T.H. Laby, or various handbooks by Clark, provided comprehensive, peer-reviewed data on everything from the density of materials to spectral lines.
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While specific copyrighted commercial textbooks require a purchase, massive amounts of verified physical and chemical data are available completely free and legally online.
⚠️ Always cross-check a few values (like the Log of 2 or the Sine of 30°) against a calculator to ensure the digital scan hasn't been corrupted or altered. How to Use Clarks Tables Effectively
Open your Clark's Table to the "Logarithms" section. Look down the leftmost column for the first two digits (
More formally known as Clark’s Tables: Science Data Book , this volume is a comprehensive collection of mathematical and scientific data. Originally compiled by D.R. Clarke and later updated by various editors (with the Orient Longman edition being the most famous in Asia), it serves as a quick reference guide.
Clark’s Tables , technically known as Clark’s Mathematical and Physical Tables
: Free, peer-reviewed textbooks funded by philanthropic foundations contain extensive, up-to-date appendices of physical constants and material properties in downloadable PDF formats.
Carrying physical booklets to every physics lab or study session can be cumbersome. Securing a digital PDF version offers several distinct advantages:
for a trigonometric or logarithmic calculation using these tables? Clarks Table | PDF - Scribd
is a classic, comprehensive reference book designed for students and scientists. It acts as a compact, all-in-one guide that eliminates the need to look up data in multiple textbooks.