A researcher has developed the first-ever made semitransparent perovskite solar cells with graphene as electrode. With simple processing techniques, solar cells with high power conversion efficiencies can be fabricated at low cost.

Magnetometers have a social network where they talk about the weather, researchers have discovered. The research team used data from over 100 individual magnetometers located at high latitudes in the northern hemisphere. These magnetometers have been used for decades to track space weather but it is…

Scientists have developed the world’s first method to fabricate high-quality perovskite materials capable of utilizing long-wavelength sunlight of 800 nm or longer. Compared to conventional methods, this method enables the creation of perovskite materials that have a 40-nm wider optical absorption…

Engineers have designed magnetic protein nanoparticles that can be used to track cells or to monitor interactions within cells. The new "hypermagnetic" protein nanoparticles can be produced within cells, allowing the cells to be imaged or sorted using magnetic techniques. This eliminates the need to…

Question: How do you know when an asphalt shingle roof needs replacement? Are there clues to look for before telltale water stains appear on our plaster ceilings? Answer: While you're in the attic, scan the underside of the roof sheathing for any new signs of water staining since the last…

Question: How do you decide which professional is best for your project? Answer: The best way is to check them out. Ask for references, and contact them. Ask to see some of their work; if you cannot see it in person, then at least ask to see their portfolios. Keep an eye open for successful…

Having your carpet, upholstery and/or hard surface cleaned by a professional carpet cleaning company? Here are some suggestions for you to prepare that will help both of you and them: Please remove any small items such as dining room chairs, magazine racks, floor plants, etc. from any areas that…

Question: How do you know when an asphalt shingle roof needs replacement? Are there clues to look for before telltale water stains appear on our plaster ceilings? Answer: While you're in the attic, scan the underside of the roof sheathing for any new signs of water staining since the last…

Having your carpet, upholstery and/or hard surface cleaned by a professional carpet cleaning company? Here are some suggestions for you to prepare that will help both of you and them: Please remove any small items such as dining room chairs, magazine racks, floor plants, etc. from any areas that…