UMPIRE DECISION REVIEW

 UPSC GS MAINS IMPORTANT QUESTIONS

What do you understand by Umpire Decision Review System in Cricket? Discuss its various components. Explain how silicone tape on the edge of the bat may fool the system.


The Umpire Decision review System(UDRS) is a technology based system used in wicket to assist match officials with their decision - making on fields umpire may choose to consult the third umpire(known as umpire review) and player may also request for third umpire decision to reconsider on field umpire decision (known as players review) .



The components of UDRs are:
1. Television replays , including slow motion.
2.Hawkeye or virtual eyes to track the path of the ball.
3.Snickometer: microphone to detect small sounds made as the ball hits pad or bat.
4.Hotspot: IR imagining system that shows where the ball has been in contact with the ball or the pad.

This system was a gossip issue after Ashes 2013 in England, as the use of silicon tape on bat was questioned.

The hotspot used in the UDRS provides the evidence to whether the ball has hit the bat or not. It uses thermal imaging (IR) technology to look for the heat left behind when the ball makes contact with the surface. When the ball just touches the edge of the bat, friction between them generates heat and which is detected. The silicon tape reduces frictional forces between the bat and the ball and therefore reduces the heat generated during collision between the two hence, if the bat is covered with silicon tape, it is difficult to get corrected decision from the third umpire, since due to low friction, low level of heat generated is not able to be detected by IR imaging technology.




Hello guys !!

This is Navina here. Visit my blog to get crisp contents on various stuffs!!

Comments

Post a Comment

Popular posts from this blog

DIGITAL SIGNATURE

Image
UPSC GS MAIN IMPORTANT QUESTION  DIGITAL SIGNATURE  Digital Signature a type of electronic signature which ensures the authenticity of the documents. It gives the information about the documents. It gives the information about the document creator and ensures that document is not altered or tampered. Authentication of digital signature means that the sender only knows the unique key along which any electronic record is tied. Hence, the sender cannot deny sending a message that he had sent. Digital Signature use encryption for ensuring the authentication of electronic document, which is done by password, checksum, CRC, private key encryption or public key encryption. Salient features of digital Signature: 1. Authentication of the Sender :                           It gives information about the creator of the document and thus authenticates the sender. 2. Data Integrity :                          It ensures that the content of the electronic document is not tampered. 3. Time Stamp :  
Read more

CHOLA ARCHITECTURE

Image
 IMPORTANT UPSC QUESTION : GS MAINS CHOLA  ARCHITECTURE  REPRESENTS A HIGH WATERMARK IN THE EVLOLUTION OF TEMPLE ARCHITECTURE. ENUMERATE. The Dravidian Architecture started by the Pallavas reached its high water mark and got matured at the hands of the Cholas. The Cholas refined Pallava architecture with the following notable features.                                                                                                                            ⁃ Cholas used stones instead of bricks. ⁃ They decorated the walls with sculptures and paintings od deities, kings and queen instead of lion motifs from Pallava. ⁃Temples were enclosed by decorative walls and entrance( Gopuram ). ⁃Temples built by the Cholas also had a great audience hall called Mandapa ; a deity room called Garbhgriha and pyramid like storey room called the Vimana . ⁃The temples were decorated by a beautiful Shikhara stone at the top.Each Shikara stone weighed in tonnes and had meticulous carvings on it. During th
Read more

PROTEST IN SHAHBAG SQUARE

Image
 UPSC GS MAINS IMPORTANT QUESTIONS The protest in Shahbag Square in Dhaka in Bangladesh reveal a fundamental split in society between the nationalists and Islamic forces. What is the significance for India? The Shahbag movement and the corresponding developments tell the story of two Bangladesh that co-exist. Bangladesh, the nation with two distinct mosaics: One a society comprising a vast majority of vibrant,egalatarian and secular individuals. It is the re-awakening of the social phenomenon or Renaissance if the liberation spirit has risen and protests against this from the other side of the divided political pysche has come up to assert because for them it is an existential question. The war crimes of 1971 did not only impact the victims of the crimes themselves,but the whole country.The Gono Jagoron Moncho would become political platforms to represent these grievances. Gono Jagoron Moncho came to present political calls for banning all religious political parties including Jamaat-e
Read more