Hubble has captured what astronomers believe is a long-theorized but never detected object: a supermassive black hole precursor. This isnt the type of black hole forged in a supernova. Instead, i… [+2631 chars]
Schematic design of the microfluidic printhead and the numerical modeled parameters. (a) The schematic figure of the hollow microfiber fabrication system using the microfluidic channel, (b) The schem… [+5727 chars]
