Rays Definition and 315 Threads

The Tampa Bay Rays are an American professional baseball team based in St. Petersburg, Florida. The Rays compete in Major League Baseball (MLB) as a member club of the American League (AL) East division. Since its inception, the team's home venue has been Tropicana Field.
Following nearly three decades of unsuccessfully trying to gain an expansion franchise or enticing existing teams to relocate to the Tampa Bay Area, an ownership group led by Vince Naimoli was approved on March 9, 1995. The Tampa Bay Devil Rays began play in the 1998 Major League Baseball season.
Their first decade of play, however, was marked by futility; they finished in last place in the AL East in all but the 2004 season, when they finished second to last. Following the 2007 season, Stuart Sternberg, who had purchased controlling interest in the team from Vince Naimoli two years earlier, changed the team's name from "Devil Rays" to "Rays", now meant to primarily refer to a burst of sunshine rather than a manta ray, though a manta ray logo remains on the uniform sleeves. The 2008 season saw the Tampa Bay Rays post their first winning season, their first AL East championship, and their first American League Pennant (defeating the rival Boston Red Sox in the ALCS), though they lost to the Philadelphia Phillies in that year's World Series. Since then, the Rays have played in the postseason five more times, winning the American League pennant again in 2020 and losing to the Los Angeles Dodgers in that year's World Series.
The Tampa Bay Rays' chief rivals are the Boston Red Sox and the New York Yankees. Regarding the former, there have been several notable on-field incidents. The Rays also have an intrastate interleague rivalry with the National League (NL)'s Miami Marlins (originally the Florida Marlins), whom they play in the Citrus Series.
Through 2020, the Rays' all-time record is 1,726-1,896 (.477).

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  1. D

    MHB Convex and concave lens and paraxial rays

    What effect would a convex (concave) lens have on paraxial rays? For a convex lens, the rays would pass through and converge on the focus on the other side. For a concave lens, the rays would reflect back to the focus on the same side. Is this correct?
  2. C

    Pion Decay into Gamma rays angle

    So i have a question regarding a homework question I'm working on which suggest a neutral pion traveling with velocity v decays into two gamma rays of equal theta to the normal and they of course have velocity c. It then asks to prove that v= cos theta Which kind of confuses me. I mean if...
  3. Q

    Race of Light Rays in Vacuum and Water: Winner or Tie?

    Imagine two light rays parallel to each other , one of them is traveling in vacuum and the other one in water. We place a detector at the same distance from the source and fire the two rays inside their respective media.who will win the race? Or is it possible to have a tie in the competition?
  4. S

    Can aluminum foil block the sun's UVA rays?

    Hello everyone. I was just curious if aluminum foil could block the sun's UVA rays. I have my home office and the sun always gets in and hits me. I know sunlight can cause early photoaging and cancers, so I want to block out as much UVA rays as possible. I do wear sunscreen, but I prefer...
  5. sophiecentaur

    Penetration of X Rays in body tissue

    I have been looking for information about the way Radiotherapy works and, needless to say, there is much more involved than just local frying of tissue. I have been told and also read, that the dose received in tissue is not necessarily maximum at the surface. For instance, the dose seems to be...
  6. L

    Rays, points and line segments

    Homework Statement Let A, B and D be points. If ##D\notin \vec{AB}## in a metric geometry, prove that ##\vec{AD}\cap\vec{AB} = \{A\}.##2. Relevant definitions Ray: If A and B are distinct points then the ray from A toward B is the set ##\vec{AB} = \overline{AB} \cup \{ C \in P \ | \...
  7. andyrk

    Formation of Image when light rays meet

    Homework Statement Why does an image form when light rays meet in ray optics? Is there explanation to it? Homework Equations The Attempt at a Solution I thought of an explanation myself and thought that it cannot be explained just like many other things cannot be explained like...
  8. K

    Why Sun Rays Lose Heat in Space: Examining the Unknown

    Why sun rays are not considerably hot when reaching earth..? is there any specific reason for the sun rays to lose its potential(temperature) as it travels a long distance in space where there is no forces to contain it nor disturb its motion. Does space have property too,because as far as i...
  9. D

    The nature of cathode rays and canal rays

    Hello everyone, I have some questions about these rays. And i would be grateful if you could help me, 1- The nature of cathode rays doesn't depend on neither the gas in the tube nor the material of the electrodes. Why? 2-The nature of canal rays depends on the gas in the tube. Why? 3-...
  10. A

    Why canal rays need a perforated cathode?

    In the cathode ray production experiment, at about .01 mm of Hg, cathode rays travel from cathode and move towards anode and produce fluorescence on the walls near the anode.At the same time canal rays also move towards cathode. But only when you use a perforated cathode, the canal rays...
  11. dbmorpher

    Carbon Nanotube production by Electron Rays

    Hello, I was doing a little research on nanotubes and came up with an idea. If we shot a cylindrical beam of electrons a few nanometers apart from each other and then shot a carbon plasma down the center would the carbon atoms be attracted to the electrons and form a nanotube at a sizable scale?
  12. J

    Are Cosmic Rays Impacting the LHC Measurements Beyond Muons?

    I've heard of cosmic rays affecting measurements made at the LHC in the context of muons. Is it just muons that can reach the detectors or is there background from other particles as well? Why are muons a background but not electrons? How significant is it? Thanks.
  13. marcus

    Beyond LHC without a machine (new physics from cosmic rays)

    Bee Hossenfelder has an interesting post I'd like to get some comment on http://backreaction.blogspot.com/2013/07/more-mysteries-in-cosmic-rays-and.html More mysteries in cosmic rays, and a proposed solution "...One mystery we already discussed previously. The “penetration depth” of the...
  14. P

    Can you make plasma with UV Rays?

    If the sun is producing plasma on a large scale on a regular basis, isn't it then true on a smaller scale that we could use the UV Rays of the sun to produce plasma by smashing two magnified rays and liquid hydrogen together in a high speed chamber? The result would be hot plasma that could be...
  15. F

    Tracing seismic rays - possible intersection

    This problem is about seismic wave propagation in a non-homogeneous layer over a halfspace. I'm not asking you to solve anything, I've already solved the problem both algebraically and in Matlab. However, the graph that I've gotten mildy surprises me. According to the graph, the seismic rays...
  16. M

    Why isn't there Cosmic Visible Background Radiation from gamma rays?

    If what used to be visible light when the universe was smaller and younger has been stretched due to the Doppler effect so that it is now microwaves and detectable as the Cosmic Microwave Background Radiation that can be found everywhere, why hasn't the gamma or x-rays of the same period not...
  17. T

    How can there be interference of light rays in Bragg's law

    As we know, Bragg's law is based on the path length difference between light which interfere with themselves after being scattered from atoms in the crystal. If you google "Bragg's law", you will see numbers of pictures showing two light rays being scattered from two different atoms. Those...
  18. M

    Dimension of Rays in Hilbert Space

    I am wondering, what is the dimension of a ray in a Hilbert space? For example here (page 2, bottom of page) I have read: I understand why a state is represented by all multiples of a vector, not just the vector. But is the ray really one-dimensional? It would be one-dimensional if we multiply...
  19. K

    How Do Radial Light Rays Behave in Schwarzschild Spacetime?

    Homework Statement Consider Schwarzschild spacetime. A) Show that the equation for ingoing/outgoing radial light rays is dt/dr = +-r/(r-2m) in t,r coordinates and dt*/dr = -1, dt*/dr=(r+2m)/(r-2m) in t*,r coordinates B) Sketch the local light cones in t,r and t*,r coordinates C) Explain...
  20. P

    Question about diagram and rays

    Homework Statement Draw the ray diagrams for a pencil sitting on the principal axis behind and in front of the focal point of a converging lens. Describe the image. Do the same for a pencil sitting on the parallel axis behind and in front of the focal point of a diverging lens.
  21. A

    Using Snell's law to find the entering/exiting rays' angles

    Homework Statement This is one of my homework questions. I think I have the right answer, but I don't understand how to figure out the "given" angle, so if someone could explain it to me, that would be great! Be sure to look at the picture attached...it's what's tricking me. A prism...
  22. A

    How Do Cosmic Rays Affect the Integrity of Unshielded Spacecraft?

    Hi all, I think this question goes best in this section, because I think the answer is something a nuclear or particle scientist could answer. In space, what would happen to a ship that did not have proper shielding from cosmic rays? (NOT the astronauts themselves; there is plenty of...
  23. X

    Geometry - Limiting Parallel Rays

    Homework Statement Let us assume that ray XY is a limiting parallel to line l, with P*X*Y. Prove that ray PY is a limiting parallel to line l. Homework Equations Steps will go something like this: Show that ray PZ meets line lat a point V. Pick a point S such that P is between S and...
  24. LeonhardEuler

    Theory of Systems of Rays question

    Hello everyone. I'm looking through an old book on optics and something there has me really confused. I attached the two pages I'm referring to, or you can find them here: http://www.maths.tcd.ie/pub/HistMath/People/Hamilton/Rays/ as pages 14 and 15 in the pdf. Basically, what's going on is...
  25. J

    What is the Physical Reason for Gamma Rays Being Absorbed?

    But high frequency are absorbed, like gamma rays. I would think it would be the opposite. So what's the physical reason?
  26. A

    Are rays from opposite sides of a hot spot of CMB parallel or not?

    hello I have a question: i am trying to understand how we find out that the curvature of the universe is zero using the angular size of the hot spots of the d microwave background radiation. http://scienceblogs.com/startswithabang/2012/07/18/how-big-is-the-entire-universe/ there is a...
  27. E

    Bremsstrahlung X-Rays: Coulomb Interaction & Electron Acceleration

    1. I have problems finding the truth of this statement. The statement is cited from "book". I want to draw your attention to the following words: electron is decelerated 2. Statement: "Bremsstrahlung X rays result from Coulomb interaction between the incident electron and the nuclei of the...
  28. S

    Why do gases not conduct electricity at ordinary pressure?

    why current does not flow through gas in discharge tube at ordinary pressure?
  29. B

    How Do you Calculate how many x rays are coming off a fusion reaction?

    Hello, I'm trying to figure out how to calculate how much energy is being released in a nuclear fusion reaction from x rays. I think it will have to do with how much deuterium is in the vacuum chamber, how many volts I am using and the amount of resistance of the mesh the electricity is...
  30. J

    So why does the atmosphere block gamma rays but not UV rays?

    Or light rays for that matter. Where does the window open in the atmosphere on the em spectrum, UV? Why is that?
  31. S

    How Much Energy Must a Cosmic Ray Have to Trace Back to Its Origin?

    Homework Statement Calculate the minimum energy of a cosmic ray that it needs to have in order to "point" back to its origin. Let's define this as being deflected by the Galactic magnetic field of B = 1μG by less than 1°, as it traverses a distance of d = 1 kpc within the Galaxy. Calculate...
  32. D

    High Energy Cosmic Rays and the Origin of Life

    The advocators of Darwin’s theory of evolution discover that it is difficult for normal evolution rate alone to form the species diversity now. What factor(s) accelerated the origin of life and species diversity? Reference viewpoints: Novae, especially supernovae, would generate high energy...
  33. F

    Are Gamma Rays Always Part of Nuclear Reactions?

    Making it short : Do gamma rays ALWAYS accompany a nuclear reaction?? I was thinking, since there are only three types of radioactive decay, alpha, beta and gamma. I don't quite understand how gamma radiation will always occur. Isn't it going to be just ONE of the three types? /Help :)
  34. M

    Ultra-high-energy cosmic ray ≠ collision of 2 'normal' rays?

    Hi, I have a rather basic question: most 'cosmic rays' have an energy of about 109 eV, but there are also 'Ultra-high-energy cosmic rays' with an energy of around 1019 eV to 1020 eV, so I was wondering if they couldn't be the result of collisions of two 'normal' cosmic rays that hit each...
  35. S

    Calculating Gamma Ray Count Rate Error in 20 secs

    Homework Statement A detector is used to count the number of gamma rays from a radioactive source if the number of counts is 10000 in exactly 20 secs then what is the error in counting rate per sec? Homework Equations- no idea. The Attempt at a Solution- As per our syllabus we...
  36. M

    Cathode Rays & Velocity: Uniform or Accelerated?

    During discharge tube experiment, the cathode rays are emitted from cathode at very low pressure...it is said that these rays move at very high velocity(if we apply high Potential Difference between 2 electrodes)...do these rays( stream of electrons) travel in uniform velocity or aren't they...
  37. M

    Simulate Gamma Rays from Radioactive Decay

    Hello, I am trying to simulate the gammas from certain radioactive decays but I am really puzzle as to how to approach this. The site I'm using as a reference lists the intensities of the different gammas corresponding to an specific decay. The thing that confuses me is that, for example...
  38. J

    How does sun rays pass through the atmosphere layers?

    Light requires some medium to pass through, what's the medium in the space, and How does sunrays enters into the earth.
  39. F

    Producing fusion reaction with x rays?

    Would it be possible to produce a fusion reaction(fusing deterium atoms) using x rays instead of high voltages? Scientist are trying to create fusion using laser, which is just focused photons, but if you have energetic photons such as x rays, which would knock the electron of the deterium atom...
  40. J

    Can gamma rays be deflected or shielded against with an electromagnetic field?

    I know we can contain the energy/plasma from a fussion reaction with an electromagnetic field, but would an EMF protect from gamma rays? Would it be possible to deflect a nuclear blast with a powerful enough EMF?
  41. T

    Visible rays under Magnetic field of the earth

    Good afternoon friends, I was wondering, "if the visible radiations coming from sun get charged say positively charged, then what will happen?" I am sure that most of its part will not reach the ground but some. But can we obtain the location of black zones for the radiation? Is it possible...
  42. lpetrich

    Evidence of Dark Matter? 130-GeV gamma rays from near our galaxy's core

    The Reference Frame: A confirmation of the 130 GeV dark matter-like bump - Lubos Motl [1204.2797] A Tentative Gamma-Ray Line from Dark Matter Annihilation at the Fermi Large Area Telescope - Christoph Weniger [1205.1045] Fermi 130 GeV gamma-ray excess and dark matter annihilation in...
  43. K

    How Do Cathode Rays Penetrate Thin Metal Films?

    Why are cathode rays able to penetrate very thin metal films?
  44. A

    Medical How can we protect ourselves from the harmful effects of UV rays?

    How can we safe us from ultraviolet rays? Guide me which diseases caused by ultraviolet rays?
  45. L

    What is the relationship between light rays and the equations of motion in GR?

    Hello, Would you know a reference showing and deriving the equations of light rays in GR. I would like to read that as well as to compare that to the equations of motion of test particles in a gravitaional field. Thanks, Michel
  46. T

    Calculating Angle Between Rays PQ & RS

    Homework Statement Calculate the angle between the ray PQ and the ray RS Anouther ray TQ also strikes the surface at Q. The refractive index of the glass is 1.50 Homework Equations c= 1/ refractive index The Attempt at a Solution The answer on my sheet say it is 20 degree, I...
  47. U

    To which extent cathode rays can be considered as current in a wire

    I want to know if there is magnetic field around a cathode ray tube. That is, does magnetic compass deflect when brought close to a CRT ? If so, can this magnetic field (produced by cathode rays) be used to have Lorentz force on a moving charge particle ? Presently, what I think is...
  48. E

    Pion decays into gamma rays. Find the energy and angle

    Hi all, I was having trouble with this problem and hoping that someone could help me with it. A pion has a rest energy of 135 MeV. It decays into two gamma rays, bursts of electro magnetic radiation that travel at the speed of light. A pion moving through the laboratory at v = 0.97c decays...
  49. M

    Given potential difference of X-ray machine find energy of X rays

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  50. Demon117

    Evaluate the energies of muonic K X rays in Fe

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