# Particle Collision related development where thermal energy, concentration, mass(gravitational) well defined

**URL:** <https://discourse.julialang.org/t/particle-collision-related-development-where-thermal-energy-concentration-mass-gravitational-well-defined/83344>\
**Category:** General Usage\
**Tags:** question, package, physics\
**Created:** [June 25, 2022, 10:26pm UTC](https://discourse.julialang.org/t/particle-collision-related-development-where-thermal-energy-concentration-mass-gravitational-well-defined/83344 "2022-06-25T22:26:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![wasiful\_alam](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/wasiful_alam/32/37444_2.png) [@wasiful\_alam](https://discourse.julialang.org/u/wasiful_alam)\
**Post date:** [June 25, 2022, 10:26pm UTC](https://discourse.julialang.org/t/particle-collision-related-development-where-thermal-energy-concentration-mass-gravitational-well-defined/83344/1 "2022-06-25T22:26:04Z")

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Hi,  
Need to know if there any package in Julia where **Temperature, Mass, Velocity, Density, Length and Time** well defined, Constants are being used. so that in any equation those can be easily written.  
Any previous simulation if done using Julia related to **particle collision** where thermal energy is a key factor then that will be helpful as well  
Thank you.