A crescograph is a device for measuring growth in plants . It was invented in the early 20th century by Sir Jagadish Chandra Bose , an Indian scientist. The Bose crescograph uses a series of clockwork gears and a smoked glass plate to record the movement of the tip of a plant or its roots at magnifications of up to 10,000. Marks are made on the plate at intervals of a few seconds, demonstrating how the rate of growth varies under varying stimuli. Bose experimented with temperature, chemicals, gasses and electricity. ref http www.edsanders.com bose edsanders.com Jagadis Bose Research on Measurement of Plant Growth reproductions of Bose Research Institute books from the Hanscom AFB Geophysical Research Library retrieved April 27, 2007 ref A Bose inspired modern electronic Crescograph ref http www.ebdir.net enlighten equipment.html Modern Electronic Crescograph ref was designed and built by Randall Fontes to measure plant movement at Stanford Research Institute for S.R.I Project 3194 Task 3 November 1975 which culminated in a report Randall Fontes Organic Biofield Sensor Organic Biofield Sensor ref http www.ebdir.net enlighten index.html obs Organic Biofield Sensor Electronics and Bioengineering Laboratory S.R.I Project 3194 Task 3 November 1975 By H. E. Puthoff and R. Fontes ref by H. E. Puthoff and R. Fontes. The Electronic Crescograph plant movement detector is capable of measurements as small as 1 1,000,000 of an inch. However, its normal operating range is from 1 1000 to 1 10,000 of an inch. The component which actually measures the movement is a differential transformer. Its movable core is hinged between two points. A micrometer is used to adjust and calibrate the system. It could record plant growth magnifying a small movements such as 10,000,000 times. References reflist div class references small Category Botany Category Indian inventions botany stub ... more details
The name of the Indian scientists of the ancient and modern times are given below. Aryabhata Baudhayana Bh skara I Brahva Brahmagupta Charaka Halayudha multicol break Jayadeva Nagarjuna Sushruta Varahmihir Knaad multicol end Modern Indian scientists multicolom Anurag chaurasia a biotechnologist working with the ICAR govt of India,Discovered anti cancer drug from Piper betle Animesh Chakravorty Anil Kakodkar APJ Abdul Kalam known as the missile man of India , architect of Agni series of nuclear missiles Arun Netravali Chief Scientist and former CEO of Bell Labs. Arun Majumdar Ashok Gadgil inventor of the UV disinfection method Ashoke Sen string theorist U. Aswathanarayana Birbal Sahni CNR Rao Prasanta Chandra Mahalanobis founder of Indian Statistical Institute , known for introducing the concept of Mahalanobis distance C. R. Rao known for Rao Blackwell theorem , Cram r Rao bound Chandrasekhara Venkata Raman physicist who discovered and modelled the Raman effect D. Bap Reddy entomologist D. R. Kaprekar number theorist Dr. Jayant Narlikar astrophysicist whose work on conformal gravity theory with Sir Fred Hoyle, called Hoyle Narlikar theory, demonstrated that a synthesis can be achieved between Albert Einstein s theory of relativity and Mach s principle Vinod Johri G Madhavan Nair G. N. Ramachandran Gajendra Pal Singh Raghava bioinformatician Ganapathi Thanikaimoni Gomatam Ravi theoretical quantum physicist, one of the pioneers in the field of consciousness studies Gopalasamudram Narayana Iyer Ramachandran Govindarajan Padmanabhan Har Gobind Khorana Harish Chandra Homi Bhabha atomic physicist Jagdish Chandra Bose a pioneer of radio and microwave optics and inventor of the crescograph Jagmohan Lal Razdan pioneer of radiology in India K. Radhakrishnan scientist K. Radhakrishnan K. R. Ramanathan Kailas Nath Kaul botanist Kotcherlakota Rangadhama Rao Krishnaswamy Kasturirangan Krishna Ella Lalji Singh M. G. K. Menon M. S. Swaminathan Manchanahalli Rangaswamy Satyanarayana ... more details
to receive a United States patent law US patent , in 1904. He also invented the crescograph Born during ... discoveries in plant physiology. He used his own invention, the crescograph , to measure plant response ... more details
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