7 sentences with 'crystals'
Example sentences and phrases with the word crystals and other words derived from it.
• « This old custom of using crystals for therapeutic purposes was revived with great force in the mid-1980s in the United States. Since then, a certain type of stone has been used for each condition. »
• « Prehistoric batteries, screws, caves lined with crystals, spark plugs and even strange clocks. These are the traces of a distant past that archaeological excavations have recently uncovered, unleashing a huge new mystery: what intelligence preceded man? »
• « In Olancha, California, researchers were looking for geodes, which form inside rocks and are cavities lined with crystals. They can be worth as much as a precious stone. »
• « Another Italian mission to Saqqara explored the tomb of Pharaoh Psametic I (4th century BC), where the largest collection of crystals ever discovered in Egypt was found. »
• « If the horizon glows, it is because tiny ice crystals reflect sunlight from nearly two hundred and twenty-eight million kilometres away. That polar ice melts immediately on the occasional Martian summer day, when the temperature reaches 15 degrees Celsius. »
• « When the ambient temperature is just above freezing, a very special snowflake forms, consisting of ice crystals, water vapour and liquid water in proportions that vary according to the temperature. »
• « Similarly, when a Jesuit astronomer, Fr. Sheiner, reported to his provincial that he had observed sunspots (discovered by Galileo), the latter replied: "Retire, my son, be calm and be assured that it is defects of your crystals or of your eyes that you have taken for sunspots. »