OCR Text |
Show Olass That Keeps Out Heat. An Austrian Inventor, Richard Szlg-mond.v, Szlg-mond.v, is reported to hnvo mado a now kind of window glass whoso chief peculiarity pe-culiarity Is that It prevents tho passage pass-age of nlue-toutlis of tho heat of tho sun's rays. It l.i woll known that ordinary window win-dow glass allows nearly all of tho boat derived from tho sun to pass through, but, on thu other hand, intercepts nil heat coming from non-luminous sourco.1, such ns a stovo or tho heated ground- This Is tho reason why heat accumulates undor tho glass root of a hothouse. If covered with Szlgmondy's glass a hothouso would, It is claimed, become a cold houso, since tho heat could not got Into It. Ono advantage, set forth in favor of tho new glass Is that a houso whose windows wero furnished with it would remain delightfully cool In summer. But In winter, perhaps, the situation would not be so agreeable. |