Tin cry Tin cry A tin cry is the characteristic sound heard when a bar of tin is bent. Variously described as a "screaming" or "crackling" sound, the effect is caused by the crystal twinning in the metal. The sound is not particularly loud, despite terms like "crying" and "screaming". It is very noticeable when a hot-dip tin coated sheet metal is bent at high speed over rollers during processing. The tin cry is often demonstrated as a simple science experiment. The bar of tin will "cry" repeatedly when bent until it breaks. The experiment can then be recycled by melting and
Wedding ring Romania, spouses celebrate their silver wedding anniversary, i. e., twenty-fifth anniversary, by exchanging silver wedding rings, which are worn on the fourth finger of the left hands along with their original, and usually gold, wedding rings. While most Christian Churches (such as the Catholic, Lutheran, and Anglican) have the exchange of rings within their wedding liturgies, some Christian denominations eschew the use of wedding rings. The wearing of plain dress has historically been practiced by many Methodist Churches, in keeping with the teaching of John Wesley, who stated that people should not be "adorned with gold, or pearls, or costly