TechnologyTiny artificial sunflowers could be used to harvest solar energy Solar panels could be made from rows of artificial sunflowers, each less than 1 millimetre wide, which automatically bend towards light ¿ìè¶ÌÊÓÆµ
HealthSticky nets of DNA from immune cells may be to blame for gallstones Immune cells may help painful gallstones grow by ejecting sticky nets of DNA around the crystals that form in bile – a finding that could lead to new treatments ¿ìè¶ÌÊÓÆµ