HumansHow to make a sweet potato even sweeter: freeze it before baking Studies show it is always best to bake your sweet potatoes, rather than boil or microwave them, and there is another trick to take the tubers to the next level of deliciousness, says Sam Wong Regulars
ÎçÒ¹¸£Àû1000¼¯ºÏTiny chip can quickly identify hundreds of thousands of DNA sequences A metamaterial that can detect a huge array of gene fragments within 5 minutes could lead to devices for medical diagnostics or environmental monitoring News