DAILY NEWS ANALYSIS

Monthly DNA

03 Dec, 2020

5 Min Read

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Paper	Topics	Subject
PT Pointer	LAB-GROWN MEAT	S&T
PT Pointer	LIGHT DETECTION AND RANGING SURVEY (LIDAR)	S&T

LAB-GROWN MEAT: CLEARED IN SINGAPORE, EMERGING ALTERNATIVE WORLDWIDE:

The Singapore Food Agency (SFA) approved this week the sale of a lab-grown meat product.

How is lab-grown or cultured meat different from plant-based meat?

The latter is made from plant sources such as soy or pea protein, while cultured meat is grown directly from cells in a laboratory.
Objective: to offer alternatives to traditional meat products that could feed a lot more people, reduce the threat of zoonotic diseases, and mitigate the environmental impact of meat consumption.
In terms of cellular structure, cultured or cultivated meat is the same as conventional meat except that cultured meat does not come directly from animals.

Source: TH

LIGHT DETECTION AND RANGING SURVEY (LIDAR)

GS-III : S&T Space

Tags:
GS-III
S&T
Space
S&T

LIGHT DETECTION AND RANGING SURVEY (LIDAR) TECHNIQUE:

National High-Speed Rail Corporation Limited will be adopting Light Detection and Ranging Survey (LiDAR) technique using Laser enabled equipment mounted on a Helicopter for conducting the ground survey for the preparation of a Detailed Project Report for the proposed Delhi-Varanasi HSR corridor.

What is LiDAR?

It is a remote sensing method that uses light in the form of a pulsed laser to measure ranges (variable distances) to the Earth.
These light pulses—combined with other data recorded by the airborne system— generate precise, three-dimensional information about the shape of the Earth and its surface characteristics.

How does it work?

LiDAR follows a simple principle — throw laser light at an object on the earth's surface and calculate the time it takes to return to the LiDAR source.
Given the speed at which the light travels (approximately 186,000 miles per second), the process of measuring the exact distance through LiDAR appears to be incredibly fast.
A lidar instrument principally consists of a laser, a scanner, and a specialized GPS receiver.
Aeroplanes and helicopters are the most commonly used platforms for acquiring lidar data over broad areas.

Source: TH

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