Daily Current Affairs 07 June 2023 – IAS Current Affairs

Current Affairs 07 June 2023 focuses on Prelims-Mains perspective. Major events are :

Source: PIB
GS II: Science and Technology

What is discussed?

Why in News?

Iran presented its first domestically made hypersonic Missile named “Fattah” having a target range of 1,400 km.

A hypersonic missile is a specific kind of weapon that can reach speeds more than Mach 5, or around 6,174 km/h, or five times the speed of sound.
Compared to traditional ballistic missiles, hypersonic missiles travel at a significantly lower height.

There are two categories of hypersonic weaponry:

High-Speed Glide vehicles that are propelled by a rocket and then glide to their destination after locating their target, scramjets—
hypersonic cruise missiles propelled by air-breathing, high-speed engines—take off.

Benefits of Hypersonic Arms

To eliminate unhardened targets in subterranean facilities, only use kinetic energy or energy produced from motion.
It might make it possible to launch quick, long-range strikes against far-off, well-defended, or time-sensitive threats (such road-mobile missiles).

Challenges in detection due to their speed, maneuverability

The US, Russia, and China lead in hypersonic weapons programs, while Australia, India, France, Germany, and Japan are also
developing such technology.
As part of its Hypersonic Technology Demonstrator Vehicle program India successfully tested a Mach 6 scramjet.
Hypersonic Wind Tunnel (HWT) test facility of the DRDO.

Source: Hindisthan Times
GS III : Science and Technology

What is discussed?

Why in News?

In Florida, clusters of brown Sargassum seaweed were discovered to be covered in flesh-eating Vibrio bacteria.

Pathogen storm – According to a recent study, Vibrio bacterial species might overtake the Great Atlantic Sargassum Belt.
The surface of plastic debris, which becomes entangled in the enormous amount of seaweed and creates serious health dangers, might attract this bacterium.
According to this study, this may produce the ideal pathogen storm.

Virulent bacteria

Aquatic microorganisms are called vibrios.
There are several creatures that can seriously harm humans and other animals.
Vibrios are gram-negative, highly mobile, facultative anaerobes, which means they don’t need oxygen to survive.
Vibrio infections can occur in people who consume raw or undercooked seafood.
The flesh-eating bacterium illness necrotizing fasciitis may be brought on by contact with an open wound.
Amputation or death may result from the infection.
Amplification – Researchers have identified a group of genes known as the “zot” genes that induce leaky gut syndrome.
If a fish consumes some plastic and becomes infected with this Vibrio, it will experience diarrhoea and a leaky gut.
It will release waste nutrients like nitrogen and phosphate, which may encourage the growth of the Sargassum and other nearby species.

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