In human blood there are two antigens and antibodies. The two antigens are antigen A and antigen B. The two antibodies are antibody A and antibody B. The antigens are present in the red blood cells and the antibodies in the serum. Regarding the
here is fracking explained in five minutes. The first use of hydraulic fracturing was in 1947. The modern fracturing technique, called ‘horizontal slickwater fracturing’, was first used in 1998. It made the extraction of shale gas economical. The energy from the injection of a
Why do we go to space? In the beginning of our space program, the answer had a lot to do with war and paranoia. But with the dawn of the space shuttle, that all changed. Where do we go from here?
There must be a good reason why we kiss. From motherly comforts to testing the genetic compatibility of your “mate” . . . the science of kissing is pretty awesome…
In the six years leading up to 2013, more than 10 million beehives were lost, often to Colony collapse disorder (CCD), nearly twice the normal rate of loss. Several possible causes for CCD have been proposed, but no single proposal has gained widespread acceptance