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3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

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year (astronomical), Bessel year
 Symbol: aastr. Category: Time SI Equivalent: 3.15579×107 s Dimension: T
Convert     aastr.
1 aastr. =
 Permeability coefficient Symbol Unit Name 3.15579×107 kg-m/N-s kilogram meter per newton per second 2.17158×1019 perm-inch (0 °C) perm-inch (0°C) 2.16255×1019 perm-inch (23 °C) perm-inch (23°C) 2.17158×1022 perm-mil (0 °C) perm-mil (0°C) 2.16255×1022 perm-mil (23 °C) perm-mil (23°C) Time Symbol Unit Name 1.30465×1024 a.u. a.u. of time 3.65253×107 blink 365.253 d day 366.254 d (sider.) day (sidereal) 26.0895 fortnight 8766.08 h hour 3.35736×1030 Jordan's elementary time 3.15579×1013 ms microsecond 3.15579×1010 ms millisecond 5.25965×105 min, mn minute 12.1751 month (30 days) 13.3686 month (sidereal) 12.0083 month (solar mean) 12.3686 month (synodic), lunar month 3.15579×1016 ns nanosecond 3.15579×107 s second 3.15579×1015 shake 52.179 w week 9.46736×1016 wink 1.00069 a, y year (calendar) 0.999991 year (sidereal) 1.00001 a, y year (solar mean) 1.00003 atrop. year (tropical)
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3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.