---
abstract: 'Certain transformations of isolated physical systems underlying various conservation laws in physics are noted. As regards each of these transformations, there is a theoretical action that is equivalent to a matched physical action on the system. Evidence supporting this thesis is found in experimental psychological research where results of various experiments allow that the imagined rotation of an object is analogous to a physical rotation. The conservation laws based on the transformations noted are theoretical or mental in nature to the same extent that they are physical. When one of the conservation principles noted is tested by carrying out the relevant transformation on the system, this test is essentially one of the influence of mental activity on physical reality.'
altloc:
  - http://xxx.lanl.gov/abs/physics/991103
  - http://publish.aps.org/eprint/gateway/eplist/aps1999nov08_002
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creators_id: []
creators_name:
  - family: Snyder
    given: Douglas M.
    honourific: ''
    lineage: ''
date: 1985
date_type: published
datestamp: 1999-11-17
department: ~
dir: disk0/00/00/08/36
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eprintid: 836
fileinfo: /style/images/fileicons/application_pdf.png;/836/3/conser.pdf
full_text_status: public
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keywords: 'conservation laws in physics, physical quantities, energy, angular momentum, linear momentum, invariance, system transformations, physical reality, imagined rotations, Shepard, Cooper'
lastmod: 2011-03-11 08:54:20
latitude: ~
longitude: ~
metadata_visibility: show
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pagerange: 754
pubdom: FALSE
publication: Perceptual and Motor Skills
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refereed: TRUE
referencetext: ~
relation_type: []
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reportno: ~
rev_number: 12
series: ~
source: ~
status_changed: 2007-09-12 16:34:57
subjects:
  - cog-psy
succeeds: ~
suggestions: ~
sword_depositor: ~
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thesistype: ~
title: On the Conservation of Physical Quantities
type: journalp
userid: 257
volume: 60
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