Question

What was the name of the apparatus constructed by Sir Jadish Chandra Bose? What did he show by this apparatus?

Answer 1

Sir Jadish Chandra Bose is considered as the father of Bengali science fiction, Sir Jadish Chandra Bose invented a device for measuring the growth of plants and Bose subsequently made a number of pioneering discoveries in plant physiology.

Complete step-by-step solution:
“Crescograph” is the apparatus constructed by Sir Jadish Chandra Bose. Crescograph is the device used for measuring the growth of plants that is contraction and expansion.
The Crescograph was able to record the magnification that is accurate up to $10000$ times using two levers. One lever will record the magnification up to $100$ times magnification whereas other lever capture the image and record at another $100$ times magnification
Crescograph are used to record the sensitivity of plants towards change surrounding environment such as:-
$\Rightarrow$ Light
$\Rightarrow$ Temperature
$\Rightarrow$ Manures
$\Rightarrow$ Chemicals
$\Rightarrow$ Gases
$\Rightarrow$ Electricity
$\Rightarrow$ Wireless waves, etc…

Additional information:
Sir Jadish Chandra Bose made a number of pioneering discoveries in the field of plant physiology and also he used his own invention that Crescograph to measure plant response to various stimuli as mentioned above and hence Sir Jadish Chandra Bose scientifically proved parallelism between the plant tissues and animal tissues.
The power feeling of plants was first interpreted by Sir Jadish Chandra Bose that is he constructed automatic recorders capable of registering extremely slight movement and also these instruments produced some of the important results such as trembling or quivering that is shaking with a slight rapid motion of the injured plants.
Sir Jadish Chandra books includes “The Nervous Mechanism of plants” and “Response in the Living and Non Living”

Note: The advanced Crescograph is an electronic Crescograph plant movement detector which is capable of measurement as small as $\dfrac{1}{{1000000}}$ of an inch. It can record plant growth, magnifying a small movement as much as $10000000$ times.