Show blass that keeps out heat an austrian inventor richard czig ondy Is reported to have made a new nd of window glass whose chief pe Is that it prevents the pass e ot nine tenths of the heat of the in s rays it 1 well known that ordinary win w glass allows nearly all of the heat from the sun to pass through it on the other hand intercepts all sat coming from non luminous such as a stove or the heated aund this is the reason why heat cumulates under the glass roof of a alhouse it covered with s glass a alhouse would it Is claimed become cold house since the heat could not st into it one advantage set forth i favor of the new glass Is that a ause whose windows were furnished ath it would remain delightfully cool i bummer but in winter perhaps ie situation would not be so agreeable |