{"product_id":"barometer-manual-board-of-trade-1859-classic-reprint","title":"Barometer Manual: Board of Trade, 1859 (Classic Reprint)","description":"Excerpt from Barometer Manual: Board of Trade, 1859\u003cbr\u003e\u003cbr\u003eIf a long pipe, closed at one end only, were emptied of air, filled with water, the open end kept in water and the pipe held upright, the water would rise in it more than thirty feet. In this way water barometers have been made. A proof of this effect is shown by any well with a sucking pump - up which, as is commonly known. The water will rise nearly thirty feet, by what is called suction, which is, in fact, the pressure of air towards an empty place.\u003cbr\u003e\u003cbr\u003eAbout the Publisher\u003cbr\u003e\u003cbr\u003eForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com\u003cbr\u003e\u003cbr\u003eThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.","brand":"Forgotten Books","offers":[{"title":"Hardback","offer_id":39319041212461,"sku":"9780364658383","price":14.45,"currency_code":"GBP","in_stock":true},{"title":"Paperback","offer_id":39835797848109,"sku":"9780282635503","price":8.59,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0262\/2357\/5085\/files\/9780364658383.jpg?v=1735498643","url":"https:\/\/www.thegreatbritishbookshop.co.uk\/products\/barometer-manual-board-of-trade-1859-classic-reprint","provider":"The Great British Bookshop","version":"1.0","type":"link"}