{"product_id":"2940044969360","title":"Engineering, Science and Antigravity: Challenging the Challenges","description":"Several antigravity devices\/machines are described. A variation of T.Townsend Brown's Electrokinetic Apparatus is experimentally investigated and an antigravity field\/force hypothesis presented. Conceptual energy based models of mass and charge that explain our basic electrical and mechanical laws and antigravity are developed. Antigravity's tenuous relationship with science is discussed.","brand":"Douglas Vandenberghe","offers":[{"title":"Default Title","offer_id":47108080369904,"sku":"2940044969360","price":7.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940044969360_p0.jpg?v=1763967585","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940044969360","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}