Why Robertson model was rejected

Unfortunately, though Robertson's electron micrographs of cell membranes were exceptional for their day, they failed to illustrate that many proteins penetrate the membrane bilayer, and since his images were necessarily static views, they gave no indication of the remarkable ability of proteins to diffuse later- ally ...

Unfortunately, though Robertson's electron micrographs of cell membranes were exceptional for their day, they failed to illustrate that many proteins penetrate the membrane bilayer, and since his images were necessarily static views, they gave no indication of the remarkable ability of proteins to diffuse later- ally ...

relative dating involves things like higher layers are most recent than rocks lower in the sequence. this can be extended to the known sequence of fossils. rocks containing rabbit fossils are later than those containing dinosaur fossils.  

absolute dating methods mainly use radioactive elements that have known rates of decay and produce recognizable products. for example potassium 40 decays to produce argon. once a rock has solidified the argon is trapped. by measuring the argon and potassium0 you can get an accurate number for the age.  

some other methods are good for archaeological ages. dendrochronology involves recognizing the sequence of tree rings. the orientation of magnetized particles in baked clay can be used to date a fire.

hope this .. .

multiply it by 5 in order for you to understand i cant give an exact answer.