Questions

Charles Macintosh (29 December 1766 – 25 July 1843) was a Scottish chemist and inventor of waterproof fabrics.He devoted all his spare time to science, particularly chemistry, and before he was twenty resigned his clerkship to take up the manufacture of chemicals. In this he was highly successful, inventing various new processes. His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics.

Rolling friction or rolling drag is the force resisting the motion when a body rolls on a surface. It is mainly caused by non-elastic effects, that is, not all the energy needed for deformation of the wheel, roadbed, etc... is recovered when the pressure is removed.

Another cause of rolling resistance lies in the slippage between the wheel and the surface, which dissipates energy.

87-year old renowned director Kasinadhuni Viswanath was on 24 April 2017 named for the prestigious Dada Saheb Phalke award for outstanding contribution to the film industry. He is a celebrated filmmaker in Telugu film industry but has also been active in Tamil and Hindi cinema.

– He is known for making films on content-driven stories that have revolved around social themes like disability, untouchability and the evils of dowry.

– He becomes the 48th recipient of the award, the highest recognition in Indian cinema, which consists of a golden lotus, a cash prize of Rs. 10 lakhs and a shawl.

– The recipient of five National Film Awards, Viswanath is known for his movies — “Sankarabharanam”, “Sagara Sangamam” (starring Kamal Haasan and Jayaprada), “Swati Mutyam”, “Saptapadi”, “Kaamchor”, “Sanjog” and “Jaag Utha Insaan” among others.

Those are stairs which goes up and down without moving.

The two most widely recognized tools used to influence a Nation's Economic activity are Monetary policy and Fiscal policy.

• Monetary policy is primarily concerned with the management of interest rates and the total supply of money in circulation and is generally carried out by central banks

• Fiscal policy is the collective term for the taxing and spending actions of governments.

The receptor molecules, which receive signals from outside the cell, passing the signal to the inside.

In order for a nerve cell, or any cell, to perceive its environment, it needs a sensory apparatus. And for an individual cell, most of that sensation is derived at the cell surface. So, it expresses on its cell surface proteins that span across the membrane.

In the outside world, these proteins can act to receive signals, catching molecules on the outside and then as the molecule passes to the inside of the cell, they can send signals like alarm signals that can tell the cell that a particular molecule is outside.

Hence, here B is the receptor cell.

Pathogenic bacteria cause the greatest harm in the food industry.