Answer:
The oblique illumination is
used by the microscopists to resolve N. Spencrii in the Dark Field Condensers.
Explanation:
It was found that the use of oblique light was required to resolve the striae. Oblique illumination was the first step toward dark field microscopy. In dark field, light
seems to radiate from the specimen while all the rest of the field is black. Resolution is as good as that in bright field while contrast is enhanced.
In dark field microscopy, no
direct light from the condenser enters the objective lens. Only light
that is reflected, refracted or diffracted by the specimen enters the objective. The dark field condenser produces a circle of light. The
light is at an extremely oblique angle to the surface of the slide. This
oblique light comes to a focus on the specimen. It then diverges so
strongly that no direct light enters the objective. This type
of illumination is a hollow cone of light.
Answer:
Financial markets tend to respond by virtue of macroeconomic and political events that occur on a day-to-day basis in the nations with the largest presence in the world economy. Thus, events such as presidential changes, political scandals or bilateral conflicts have a wide interference in the development of financial investments.
Therefore, the fact that a bilateral conflict between the USA and Iran begins, implies that the investments and businesses that are developing in these countries may have a negative development. For this reason, financial investors, after the death of Qassem Suleimani, decided to exit their investments in these countries in order to avoid eventual economic losses.
The declaration of independence said that everyone has the right to life liberty and the pursuit of happiness
