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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - July 21, 1971, Lethbridge, Alberta 22 tHHBRIDGE HERALD Wednesday, July 21, 1971 Your horoscope By Jeane Dixort THURSDAY, JULY 22 Your birthday today: No area of life escapes the fer- ment of rearrangement for fun and self improvement. Your search for efficiency in your life leads you to try al- most everything; include prayer and meditation in your studies. Today's natives are often collectors of special types of objecst, are either overly conservative about money or completely thrift- less spenders. AMES (March 21 April You'll remember this day as the time you tried out a bright idea without givipr; it much thought. There's a belter than even chance it will work more drastically than expected. TAURUS (April 20 May Results of recent hard work are indicated for the early horn's. The temptation is to let up and loaf later you may miss some fun if your atten- tion wanders too far. GEMINI (May 21-Jimc Younger persons, some of them with inconvenient plans, tend to Cooler mountains Andy sends a complete ZO- volume set ol the World Book Encyclopedia to Paul Kahler, age 14, of Whitesboro, New York, for his question: Why is it cooler in the moun- tains? This is a popular summer- time question, when sizzling city folk turn their minds to cooler locations. In the Cali- fornia valleys, people may look longingly at patches of winter snow still clinging to the dis- tant mountains. This seems odd because those lofty peaks are closer to the sun and one would expect them to get more of its heat. However, the be- havior of the sun's radiation is very complex. Strange to say, it is directly related to those glorious pictures of the earth from outer space. Seen from a spacecraft, our home in the heavens is a hazy ball, glowing with moving patches o[ blues and greens and trailing clouds of wispy white. At least, this is what the sunlit side of the globe looks like. And all this bright beauty is actually reflected radiation that comes from the sun. The solar radiation reaching our upper atmosphere is estimated to equal about 23 trillion horse- power. But almost half of this radiant energy is reflected back into space. It does not reach down to warm the earth but it does add that hazy glow of gorgeous colors seen from outer space. Solar radiation is electro- magnetic energy, travelling in a blend of assorted wavelengths. The portion that pierces the upper atmosphere runs into va- rious obstacles as it zooms down to the surface of the planet. Different objects absorb and reflect its assorted wave- lengths in different amounts. Clouds of water droplets in the atmosphere may reflect back as much as 75 per cent of [Jie light waves. About 15 per cent of the solar radiation is ab- sorbed by fragments of atmos- pheric dust and water vapor, ozone and carbon dioxide. Hard- ly any at all is absorbed by the bulk of airy gases. Hence, most of it reaches the surface, where certain wavelengths are con- verted to heat. Tliese wavelengths are ab- sorbed by hot pavements and sandy deserts, by buildings and other surfaces basking in the sunshine. The molecules of these substances use this solar energy to gain speed a n c heat, o fcourse, is generated by molecular motion. And, heat spreads by radiation. Warm ob- jects on the surface of the earth spread their warmth to the air around them and the lower level of the atmosphere gets hot. But only a .portion of this heat is carried aloft. This simplified explanation of how the earth copes with solar radiation indicates why moun- tain tops stay cooler than the plains and valleys, even though they are closer to the sun. The atmosphere lets through the light waves, but it converts al- most no wavelengths into heat. The air gets almost all its warmth from heat radiated by Ihe land and sea and not much of this heat spreads high enough to warm the tops of the mountains. Some surface heat is carried aloft by winds and convection currents. But this light, warm air is expanding and the ex- panding process causes it to lose its heat and become cool- er. Even a hot high wind has little warmth to share with a lifty mountain peak. This is why many high mountains in the tropics never gel a chance to melt their snowy crowns. In our more temperate zones, the mountains stay cooler when the summer sun scorches the lower plains and valleys. Questions assed by cnfMrcn of Herald readers should be mailed to Ask Andy, P.O. Box 765, Huntingfon Beach, California 92648. (Copyright Chronicle Publishing Co. 1971) clutter the program. Your own forbearance makes all the dif- ference. CANCER (June Pick up yesterday's changes and go right on testing and ver- ifying. Half-way measures are out of season. ..LEO (July 23 Aug. If you want anything done right, you must do it yourself. Dele- gation of authority is possible, but not curiousity and under- standing of your own best in- terests. VIRGO (Aug. 23 Sept. Life is a bit easier as you go along with the paterns you're systematically cultivating. Avoid time-wasters. LIBRA (Sept. 23 Od. Private interests flourish, may come to favorable general no- tice; let this be brief and with- out fuss. SCORPIO (Oct. 23 Nov. Contrasts, contradiction are quite risible and could provoke harsh reaction. Pause, let your unconscious sort thru the stim- uli and provide deeper guid- ance. Constructive actions are not always easy. SAGITTARIUS (Nov. 22-Dcc. The temptation to let things go while you have fun spoils cooperation, causes you to be left out of more important mai- lers in Ihe future. CAI'IUCOItN (Dec. 22-Jan. Be sure you've heard all the details and have an answer prepared. Tomorrow you need the information up to date and in balance. AQUARIUS (Jan. 20 Feb. Present the most colorful side of your career and philos- ophy. You may sell an idea that improves things for your- self and everybody around you. PISCES (Feb. 19 March Before you let anybody help, make sure they really under- stand what you need done, and that you really want the obli- gations that go with the help. It could be you're simply being sorry for yourself. (By The Chicago Tribune) Doctors to fight books check plan TORONTO