{"product_id":"philosophy-of-physical-magnitudes-9781009233682","title":"Philosophy of Physical Magnitudes","description":"Dimensional quantities such as length, mass and charge, i.e., numbers combined with a conventional unit, are essential components of theories in the sciences, especially physics, chemistry and biology. Do they represent a world with absolute physical magnitudes, or are they merely magnitude ratios in disguise? Would we notice a difference if all the distances or charges in the world suddenly doubled? These central questions of this Element are illustrated by imagining how one would convey the meaning of a kilogram to aliens if one were only allowed to communicate via Morse code.\u003cbr\u003e","brand":"Cambridge University Press","offers":[{"title":"Default Title","offer_id":50402869838098,"sku":"9781009233682","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_8e0977d3-36fb-4cdb-9db8-73ba8401bfd3.jpg?v=1740410765","url":"https:\/\/surprise-castle.myshopify.com\/products\/philosophy-of-physical-magnitudes-9781009233682","provider":"Surprise Castle","version":"1.0","type":"link"}