That Receipt in Your Pocket Might Be Toxic. Some Wood Might Fix It
科学家将木材废料转化为更安全、无毒的热敏纸收据。
Reliquary of the Holy Crib: Remains of Jesus' manger from Bethlehem
罗马大教堂的一个金银容器中的五块木头可能是耶稣出生时所躺的马槽的残骸。
