4+ hour, 19+ min ago  (218+ words) Frank Klaus Tittel, a physicist whose career paralleled the rise of modern laser technology and who helped build Rice University's reputation in laser spectroscopy and trace-gas sensing over nearly six decades, died Feb. 17. He was 92. His pioneering work in laser-based…...

1+ week, 7+ hour ago  (448+ words) When you turn on a faucet, charge an electric vehicle or use products made with clean hydrogen, you may not realize that membranes " ultrathin films perforated with pores too small to see " make these modern processes possible. They purify water,…...