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Wife testifies, Bongiovanni doesn't, before defense rests

The topic of cash loomed large as Assistant U.S. Attorney Nicholas Cooper cross-examined Lindsay Bongiovanni, with repeated questions about whether the couple paid cash for their purchases.

August and September gales have claimed the lives of many Placentia Bay fishermen

Environment Canada's warning about the possibility of more storms this hurricane season is a reminder of how far weather forecasting has come from years ago, when fishermen from Placentia Bay in their small schooners would leave port to fish off Cape St. Mary's — and tragically, many, many lives would be lost.

Would you leave your parish because of the priest?

The Strange Story of Elizabeth Bullock's Haunted Ashes

In September of 1956, the eminent engineer Dr. Harvey Slatin and his artist wife, Yeffe Kimball, purchased a 4-story red brick residential building at 11 Bank Street in New York City’s Greenwich Village. The structure was around 125 years old, and their plan was to renovate it and restore it into its former glory as... Read more »

After 20 years of trying, scientists succeed in doping a 1D chain of cuprates

After 20 years of trying, scientists succeed in doping 1D chain of cuprates

10 Unsolved Terror Attacks In The United States

Lead Halide Perovskite may Lead to More Efficient Solar Cells

Lead Halide Perovskite may Lead to More Efficient Solar Cells Written by AZoMJan 22 2021 Among the group of materials called perovskites, one of the most fascinating is a material that is capable of changing solar light to electricity as efficiently as present-day silicon solar cells available in the market. This material could also be produced much more easily and cost-effectively. Scientists at SLAC National Accelerator Laboratory and Stanford University discovered that squeezing a promising lead halide material in a diamond anvil cell (left) produces a so-called “black perovskite” (right) that's stable enough for solar power applications. Image Credit: Greg Stewart/ SLAC National Accelerator Laboratory.

Squeezing a rock-star material could make it stable enough for solar cells

 E-Mail IMAGE: Scientists at SLAC National Accelerator Laboratory and Stanford University discovered that squeezing a promising lead halide material in a diamond anvil cell (left) produces a so-called "black perovskite " (right)... view more  Credit: Greg Stewart/ SLAC National Accelerator Laboratory Among the materials known as perovskites, one of the most exciting is a material that can convert sunlight to electricity as efficiently as today's commercial silicon solar cells and has the potential for being much cheaper and easier to manufacture. There's just one problem: Of the four possible atomic configurations, or phases, this material can take, three are efficient but unstable at room temperature and in ordinary environments, and they quickly revert to the fourth phase, which is completely useless for solar applications.