• Displaying the Tetragrammaton on a computer screen was not a problem because the image has to be repainted dozens of times a second, so we don't have to worry about erasing. With e-Ink (and I don't know if the Kindle uses this as well), once an image is drawn to the screen it stays there until changed. Are there now halachic problems with displaying text containing the Tetragrammaton?
• If cells are extracted from a living animal and cultured into foodstuffs, does that violate ever min he-chai, the law that says we may not eat a limb torn from a living animal?