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Showing posts with label General. Show all posts
Showing posts with label General. Show all posts

Tuesday, 27 February 2024

The Indian Astronauts

The Bharatiya Prime Minister Narendra Damodar Das

 

Modi inaugurates three space projects startup. Ganganyan orbital mission will be the first. 

1. Indian Space Station 
2. Indian landing on the moon
3. Ganganyan orbital mission.

Indian Astronauts will be called ' Vyomanauts'

A. Vyomanaut 1. GROUP CAPTAIN PRASANT NAIR

B. Vyomanaut 2. GROUP CAPTAIN AJIT KRISHNAN

C. Vyomanaut 3. GROUP CAPTAIN ANGAD PRATAP

D. Vyomanaut 4. WING COMMANDER SHUBANSHU SHUKLA

They will be going to space by 2025 end from Bharat. 

Monday, 26 February 2024

NEUTRINOS - What are they?

Exploring Neutrinos: A Fascinating Journey Through Science

Introduction

The mysterious world of neutrinos has intrigued scientists for decades. This blog aims to bring together the exciting discoveries and research about these elusive particles, drawing from various scientific publications, research institutions and government laboratories. All the information shared here is publicly accessible and offers a glimpse into the fascinating study of neutrinos.

The Discovery

Back in 1956, scientists made a groundbreaking discovery by experimentally identifying the neutrino. In the Standard Model of Particle Physics, the neutrino is a particle that stands out due to its tiny size, neutral charge and elusive nature. Neutrinos are the most abundant particles with mass in the universe. They are produced in processes like nuclear fusion in stars and radioactive decay in reactors. Even everyday items like bananas emit neutrinos because of the radioactive potassium in them. Despite their abundance, neutrinos rarely interact with matter. Trillions of neutrinos from the sun pass through our bodies every second, yet we don’t feel a thing.

Neutrinos were first theorised in 1930, but it took 26 years to confirm their existence experimentally. Today, scientists are keen to understand more about these particles, including their mass, how they interact with matter and whether they might be their own antiparticles. Some theories even suggest that neutrinos could help explain why the universe is made mostly of matter rather than antimatter after the Big Bang.

Neutrinos: The Ghost Particles

Neutrinos are part of a group of elementary particles called leptons and are often called "ghost particles" because of their ability to pass through matter almost without interaction. They are fundamental components of the universe, just like electrons, muons and taus. Wolfgang Pauli first proposed the existence of neutrinos in 1930 to explain energy discrepancies in radioactive beta decay, but it wasn't until 1956 that they were detected. The term "neutrino" was coined by Enrico Fermi in 1932 and later popularised by Edoardo Amaldi.

In 1942, Wang Ganchang suggested using beta capture for neutrino detection, leading to their eventual discovery by Clyde Cowan, Frederick Reines and others in 1956. This discovery earned them the Nobel Prize in 1995.

Properties of Neutrinos

Neutrinos are electrically neutral and have a very small mass compared to other subatomic particles like electrons or quarks. They interact mainly through the weak nuclear force, responsible for processes like beta decay and occasionally through gravity. Due to their rare interactions, detecting neutrinos is extremely challenging. Neutrinos come in three types—electron neutrinos, muon neutrinos and tau neutrinos—each associated with specific leptons. These types can change from one to another as neutrinos travel through space, indicating that they have mass.

How We Detect Neutrinos

Detecting neutrinos requires highly sensitive instruments due to their minimal interaction with matter. Various methods are used, including Cherenkov Radiation, Neutrino Capture and Inverse Beta Decay. Cherenkov Radiation is similar to a sonic boom but occurs when a particle exceeds the speed of light in a medium like heavy water (D2O). This phenomenon helps indicate the presence of neutrinos and can also suggest superluminal motion in certain theoretical contexts.

Cosmic Importance of Neutrinos

Neutrinos play a crucial role in many astrophysical processes. They are produced in large quantities during nuclear fusion in stars, supernovae and other high-energy cosmic events. Neutrinos from the sun help us understand solar fusion, while those from distant sources provide insights into the universe's most energetic phenomena, such as active galactic nuclei and gamma-ray bursts.

Unanswered Questions

Despite significant progress in neutrino research, many mysteries remain. The exact masses of neutrinos are still unknown, with experiments only providing upper limits. Neutrino oscillation shows they have mass, but precise measurements are elusive. Additionally, the imbalance between matter and antimatter in the universe suggests possible differences between neutrinos and their antimatter counterparts—antineutrinos. This is an area of active research in particle physics.

Conclusion

Neutrinos are among the most fascinating and mysterious particles in the Standard Model of particle physics. Studying them not only enhances our understanding of fundamental physics but also sheds light on the deeper workings of the universe, from cosmic dynamics to the essence of matter itself. As research continues, we can look forward to uncovering more secrets about these ghostly particles that play such a significant role in our universe.

 

Sunday, 14 March 2021

Difference between an Air-Conditioner and an Air-Cooler

I am seeing lots of Air Coolers advertisements for many years. Many outlets are also selling them without giving an important reason. They're actually hiding those for their sales. 

 

Air Coolers are humidifiers technically. They induce humidity in dry areas like those places in interior like Salem, Vellore, Nagpur, Delhi etc. Where room AC won't help while a central AC can help. Interior areas have very less humidity, so they’ll feel hot. When we induce humidity, we feel a cooling effect as humidity goes up.

 

Whereas in coastal areas, air conditioners will help and work as they dehumidify the air. Because the coastal areas have lots of humidity, it needs to be reduced. When reduced, we feel a cooling effect as AC will also suck moisture on your skin. 

 

While a central AC is a different animal. It is a hybrid of Air cooler and an air-conditioner. 

 

One thing, if you have low or high blood pressure, have cardiac issues, please be careful when you come out of an AC room. Temperature difference between inside and outside during peak summer will be drastic. It will take time for your body to adjust. That gap may kill you as changes/ shift will be sudden & extreme and body will try to adjust by trying to rush blood on emergency to skin and brain. But it can't do that instantly. So heart is put onto maximum strain and it may lead to cardiac arrest or even a brain stroke. 

 

In 2000/2001 I experienced that physically. I was shopping in Spencer's. Mall was 22° C and immediate outside temperature was 43° C. A difference of almost 21° C, my body struggled to adjust and I was about to get knocked down unconscious. 

 

Especially people with comorbidities, aged should be careful in an air-conditioned environment. Same effect may be felt in reverse during winters.

 

The Air Conditioners maintain an ambient temperature of 20 to 24° C. During winters, many areas experience colder temperatures, the room temperature will be pretty warm and outside temperature will be cold. This difference in temperature may also induce similar health issues I marked above.   

 

In French the Air Conditioner is called CLIMATISEUR & for Air Coolers REFROIDISSEUR D’AIR which says their original intended usage and purpose.

Friday, 11 May 2018

Ancient Indian Inventions

INDIA’S SCIENTIFIC CONTRIBUTIONS TO THE WORLD

* Few discoveries were also later done by some westerners
*** Later known as or known to be
# Later by Sir Isaac Newton 1642-1727 later known as Newton’s Law of Motion
# Later confirmed by Galileo Galilei 1564-1642
## More refinement

1. Discovery and use of Zero: Pingalacharya - 200BC
2. Loans and Interests: Vishnusmruthi - 100BC
3. Charging Interests: Vishnusmruthi - 100BC
4. Pythagorus Theorem *: Boudhayana - 700BC
5. Binomial Theorem *: Pingalacharya - 200 BC
6. Geometry in Sulbusutra – II: Boudhayana - 700BC
7. Rules of Bodies in Motion * #: Aryabatta 1 - 499AD
8. Arc and Chord: Aryabatta 1 - 499AD
9. Circle – Value of Phi: Aryabatta 1 - 499AD
9A. Circle – Value of Phi ##: Baskaracharya 1 - 628 AD
10. Triangles: Aryabatta 1 - 499 AD
11. Rotation of Earth II *#: Aryabatta 1 - 499AD
12. Eclipse 1: Aryabatta 1 - 499 AD
13. Four Quadrants of Earth: Aryabatta 1 -499 AD
14. Nrushiysjanam: Aryabatta 1 -499AD
15. Day Diameter: Panchasiddhantika 4 - 505 AD
16. Meridian and Time: Varahamihira
17. Knowledge of Infinity: Baskaracharya 11 in 600 AD and refined by Bharmaguptha in 1148 AD same were republished by Albert Einstein 1879-1955
18. Use of Ratio and Proportion: Baskaracharya 1 – 628 AD
19. Use of Fractions: Baskaracharya 1 – 628 AD
20. Partnership and Shares: Baskaracharya 1 – 628 AD
21. Progression of Type 1 Sq +2Sq +3Sq + 4Sq: Bhaskaracharya 1 - 628 AD
22. Progression of Type 1Cu + 2C+3Cu+ 4Cu: Bhaskarachrya 1 – 628 AD
23. Triangles (Quiz) Baskara 1 – 628 AD
24. Rotation of Earth 1: Bharmaguptha – 629 AD
25. Place Values 1: Vyasa Bhashya to Yoga Sutra – 650 AD
26. Parallax II: Lallacharya – 700 AD
27. Parallax III: Lallacharya – 700 AD
28. Apogee, Perigee and Orbit of Earth: Lallacharya – 700 AD
29. Appearances of Circumference of Earth: Lallacharya – 700 AD
30. Shape of Earth: Lallacharya – 700 AD
31. Globe: Varahamihira – 505 AD
32. Meridian and Time: Baskara 1 – 628 AD
33. Eclipse 11: Lallacharya – 700 AD
34. Eclipse 111: Lallacharya – 700 AD
35. Angular Dimensions: Vateswara – 880 AD
36. Horizon: Vateswara – 880 AD
37. Astronomical Definitions: Vateswara – 880 AD
38. Equator: Vateswara – 880 AD
39. 6 o’ Clock Circle: Vateswara – 880 AD
40. Circle of Diurnal Moon: Vateswara – 880 AD
41. Day Radius: Vateswara – 880 AD
42. Ecliptic: Vateswara – 880 AD
43. Setting point of Ecliptic: Vateswara – 880 AD
44. Rising – Setting line: Vateswara – 880 AD
45. Day Radius and Earth sine: Vateswara – 880 AD
46. Sun’s Prime Vertical: Vateswara – 880 AD
47. Progression of Type En + En Sq + En Cu: Sreedharacharya – 900 AD
48. First Degree Indeterminate Equation: Sreedharacharya – 900 AD
49. Newton Gauss: Vateswara – 904 AD (Later by Newton in 1670)
50. First Order Equation – II: Sreedharacharya – 990 AD
51. Equations of Higher Order -1: Sreedharacharya – 990 AD
52. Permutations and Combinations -1: Sridaracharya – 990 AD
53. Interest Calculation: Sreedharacharya – 990 Ad
54. Meeting place of the two surfaces: Aryabatta 1 – 499 AD
55. Meridian: Sankaranarayana 1 – 950 AD
56. Eclipse -1: Sankaranarayana 1 – 950 AD
57. Knowledge of Infinity: Bharmaguptha & Baskaracharya II – 600 & 1148 AD
58. Permutations and Combination II: Baskaracharya II – 1114 AD
59. Calculations with Zero: Sripati – 1039 AD
60. First Order Equation -1: Bhaskaracharya II- 1114 AD
61. Equations of higher Order –II: Bhaskaracharya II – 1114 AD
62. Area of Circle and Sphere: Baskaracharya II- 1114 AD
63. Polygonal: Baskara II – 1114 AD
64. Length of Arc – Chord: Baskara II – 1114 AD
65. Arc and Arrow: Baskara II- 1114 AD
66. Volumes of Cones: Baskara II – 1114 AD
67. Gravity: Baskara II – 1114 AD
68. Use of Average Values: Baskaracharya II – 1150 AD
69. Gregory’s calender: Madhava – 1350 AD (in 1632 by Pope Ugo Buoncompagni Gregory XIII)
70. *** De Molvre’s (1650 AD) Approximation: Madhavacharya – 1350 AD
71. ***Lhuiler’s (1782 AD) Formula: Madhavacharya – 1350 AD
72. *** Lebnitz (1673 AD) Power Series: Puthumana Somayaji – 1440 AD
73. ***Taylor (1685 AD) Series of Sine and Cosine: Nilakanta – 1444 AD
74. *** Newton’s Infinite GP Convergent series: Nilakantha- 1444 AD
75. Somayaji’s Theorems: Puthumana Somayaji – 1450 AD
76. Arc & Chord: Puthumana Somayaji – 1450 AD
77. Sine, Cosine, Radius and Arc: Puthumana Somayaji – 1450 AD
78. *** Newton’s (1660 AD) Power Series: Puthumana Somayaji – 1450 AD
79. Velocity of Planets per Day: Puthumana Somayaji – 1450 AD
80. Place Values – II: Sankaracharya – Year unknown
81. Tycho Brahe Reduction of Ecliptic: Achyuta Pisharoti – Year Unknown
82. Parallax -1: Lallacharya – Year Unknown







Inventions by Indian Scientists and later by Western Scientists:
Word in Red are by Indians and black by Westerners

1.    BHOUDHAYANA – 700 BC -> Pythagoras Theorem: Pythagoras – 500 BC
& Proof of Pythagoras Theorem: Euclid – 300 BC
2.    SUSRUTHA – 700 BC-> Cataract Operation : Joseph Lister – 1600 AD
lithotomy: Marios Santos – 1600 AD
Plastic Surgery: Joseph Constantine – 1814 AD
Nose Surgery: Gasparo Tag Cozzi – 1600 AD
Caesarean:
Amputation:
Organ Transplant:
Artificial implantation of organs:
Surgical Instruments:
Anastasia:
3.    KANAPPAR (Year Not known) : Eye Transplant
4.    GOUTHAMA - 300 BC -> *** Evolution Theory: Charles Robert Darwin – 1800 AD
*** Wave Nature of Sound: Hyghen – 1700 AD
5. KANAADA – 300 BC - > *** Atomic Theory: John Dalton (1766-1844) – 1822 AD
6. CHARAKA – 300 BC - > *** Blood Circulation: William Harvey (1578-1657) – 1656 AD
*** Micro Organisms: Lewis Pasture: 1822 AD
7. ARYABHATTA -1 - 476 AD ->

*** Spherical Shape of Earth: Galileo Galilei – 1564 AD
*** Revolution of Earth: Kepler – 1571 AD
*** Apogee: Kepler
*** Sine & Cosine: DeMolvre’s
*** Diameter of Earth: Copernicus – 1473 AD
*** Value of Pie: Lindemann – 1882 AD
*** Square Root Determination: Cantanew – 1546 AD

8. VARAHAMITRA – 505 AD ->
Comets: Haley – 1656 AD

9. BRAMAGUPTHA – 628 AD ->

*** Style’s Equation: Style – 1600 AD
*** Positive integral: DeMolvre’s – 1667 AD
*** Sterling Formula: Sterling – 1642 AD
*** Newton’s Sterling Interpolation: Newton / Sterling
*** Equation for Area for Cyclic Quadrilateral: W. Shell – 1619 AD
*** Equation for Radius of Cyclic Quadrilateral: Lhuiler – 1782 AD
*** Intermediate Equation of Second Degree: Langrange – 1560

10. GOVINDASWAMIN – 800 AD - >

*** Newton Gauss Forward:
*** Interpolation Formula: NEWTON / GAUSS


11. LALLACHARYA – 748 AD - >
*** Perigee: Kepler

12. VATESWARA – 860 AD ->
*** Newton Gauss Backward:
*** Interpolation Formula: Newton / Gauss

13. BHASKARA II - 1114 AD ->
*** Gravity: Newton
*** Cyclic Method: Galois – 1600 AD
*** Inverse Cyclic Method: Euler – 1600 AD
*** Differential Calculus: Newton
*** Rolle’s Theorem: Rolle – 1646 AD
*** Theory of Continued Fraction: Sanderson
*** Pellian Equation: Deoron Pale – 1660 AD

14. MADHAVA – 1350 AD - >

*** Taylor Sine Cosine Series: Taylor – 1685 AD
*** Lebnitz Series: Lednitz – 1642 AD
*** Gregory’s series of Arc: Gregory
*** Lednitz Infinite: Lebnitz

15. PARAMESWARA – 1360 AD ->
*** Lhuiler Formula: Lhuiler – 1782 AD

16. NILAKANTHA – 1440 AD - >
*** Infinite GP Series: Newton
*** Lebnitz Power Series: Lebnitz
17. SAYANA – 1400 AD - >
*** Velocity of Light: Newton – 1642 AD
18. PUTHUMANA SOMAYAJI – 1440 AD ->
*** DeMolvre’s Infinite Series: DeMolvre’s
19. ACHYUTHA PISHAROTI – 1530 AD - >
*** Tycho – Brahe Reduction: Tycho Brahe – 1546 AD

THESE ARE MY  CONSCIENTIOUS COLLECTION OF DATA FROM VARIOUS SOURCES.