"PhysicalConstant" (Interpreter Type)

New in 14.1

Natural-language reference to a physical constant.

Details

"PhysicalConstant" can be used in Interpreter and related constructs, including deployed smart fields.
Use of "PhysicalConstant" requires connectivity to the Wolfram Cloud.

Allowed Forms

Any natural-language description of a physical constant.

Restriction Specifications

	Restricted["PhysicalConstant", {{choice_₁,…}}]	one among choices
	Restricted["PhysicalConstant", entityclass]	one among the physical constants of entityclass

Interpretation

"PhysicalConstant" yields an Entity of type "PhysicalConstant".

Examples

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Basic Examples (3)Summary of the most common use cases

Interpret "speed of light" as a physical constant:

In[1]:=1

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-rae2nv

Out[1]=1

Obtain the corresponding value in standard units:

In[2]:=2

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-brk6ox

Out[2]=2

Interpret "planck's constant" as a physical constant:

In[1]:=1

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-zkgcnq

Out[1]=1

Obtain the corresponding numerical value in standard units:

In[2]:=2

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-pw1fig

Out[2]=2

Restrict to physical constants in a class:

In[1]:=1

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-qxzu6x

Out[1]=1

Possible Issues (1)Common pitfalls and unexpected behavior

A failure is returned if no physical constant interpretation exists with the specific restriction:

In[1]:=1

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-dc77vi

Out[1]=1

If a physical constant satisfying the given restriction exists, it is returned:

In[2]:=2

✖

https://wolfram.com/xid/0br8dru3e1b5n4k5ivgehfar-q7x8s8

Out[2]=2

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