This HTML5 document contains 4 embedded RDF statements represented using HTML+Microdata notation.

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PrefixNamespace IRI
isaphttp://webisa.webdatacommons.org/prov/
isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
n5profmattstrassler.
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
Subject Item
isa:291877436
rdf:type
prov:Entity
prov:value
To be fair, the experiment should be done dropping the objects individually e.g. feather first, then the hammer and then see whether the times taken are the same or not.
prov:wasQuotedFrom
n5:com
Subject Item
isap:163776154
prov:wasDerivedFrom
isa:291877436