It is refraction
To become an Oncologist, or cancer specialist....To become an Oncologist, or cancer specialist, a medical degree is the first requirement and usually takes four-six years to earn (depending on the country). After that, a one (1) year internship and several years (generally two (2)) of residency in oncology will suffice. Of course, rapidly developing strategies, medicines and treatment options require continual on-going education to properly practice in the field of Oncology.
Good luck. Who knows, YOU might be the person who finally eradicates, or at least finds a viable "immunization" to prevent, what is, in all probability, mankind's most dreaded disease.
An oncologist is a medical physician who specialises in treating people with cancer....An oncologist is a medical physician who specialises in treating people with cancer.
YOu would have to do all the usual med school stuff (6 years) then intern, then residency befire starting to specialise.
It should also be noted that there are now several sub-specialties of oncology which require their own post-residency training.
According to Maryln Van DeSavant I seem to recall she said 7 miles. From basic geometry, you get that the distance to the horizon is D=sqrt(2Rh) where D = distance to horizon R = radius of earth h = height of observer, which would be the height of your eyes. R and h have to be in consistent units, of course. In feet the radius of the earth is about 4000 mi * 5000 ft/mi or 20 million feet. Standing on the shore, your eyes are maybe 5 feet above the surface, so D=sqrt(2*20e6*5)= 14000 feet, or a little under three miles. There are some other effects that make that number a little different. Refraction bends your line of sight, so you can see a little bit farther. If you're looking at an object on the water, like a ship, you also get the distance on the other side of the horizion that corresponds to the height of the target. ==How to calculate the distance yourself== To get an "approximate" distance to the oceanic horizon from a particular observation point, take the square root of the height of the observation point, add 22.5%, and that will give you the distance in statute miles. For example, if your eyes were 6 feet off the ground, and you stood atop a 50' tower, your observation point would be 56'. The square root of 56' is 7.48. Add 22.5% of 7.48 (1.68) to 7.48 and you have 9.16 statute miles from your eyes to the horizon.
No, it wil not.
No, an ideal solution is completely different than a true solution. A true solution is where you can't differentiate between the solute and solvent molecules even at the microscopic level. It is completely homogeneous. For example, milk seems to be completely homogeneous but it isn't. Milk is actually has a suspension of fat molecules which are not dissolved at all. An ideal solution, on the other hand, is one where molecular interactions between solute molecules are absolutely zero, and it follows Raoult's law. No solution is in fact ideal (although many are close to ideal), but we do have true solutions.