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Cosmic rays

Cosmic rays are energetic particles originating from space that impinge on Earth's atmosphere. Almost 90% of all the incoming cosmic ray particles are protons, about 9% are helium nuclei (alpha particles) and about 1% are electrons (beta minus particles). The term "ray" is a misnomer, as cosmic particles arrive individually, not in the form of a ray or beam of particles. The variety of particle energies reflects the wide variety of sources. The origins of these particles range from energetic processes on the Sun all the way to as yet unknown events in the farthest reaches of the visible universe. Cosmic rays can have energies of over 1020 eV, far higher than the 1012 to 1013 eV that man-made particle accelerators can produce. (See Ultra-high-energy cosmic rays for a description of the detection of a single particle with an energy of about 50 J, the same as a well-hit tennis ball at 42 m/s [about 94 mph].) There has been interest in investigating cosmic rays of even greater energies.

Uploaded by tirtha9 (430) • 2 months ago
Tags: cosmic, rays

tirtha9
(430)

discussion results


bucks87
(6)
Tampa Bay Rays

For all the talk of ohh its the same old Rays is out the window cause while they almost certainly will not make the playoffs they have a foundation that can most certainly in the future make them...

Started by bucks87 (6) • 6 months ago • 0 responses
Tags: rays

zatoichi2080
(2892)
Are the ray of the sun harmful for the skin?

It smells summer here today,that's incredible this sensation . So,in my hometown I'm gonna cross a lot of japanese and asian tourists with their umbrellas finely wandering the city . I wonder if...

Started by zatoichi2080 (2892) in people • 10 responses • Last response by zatoichi2080 (2892) • 1 year ago
Tags: sun, skin, rays, advice, cancer

omer_ahmed_tabarik
(669)
Scientist Makes experiment kills two people through Mobile rays... Read More

Today, I got a message when I got back from college. The message read that " Don't pick any calls with the number 8880001, 5180, 000, 111 (and another number I don't remember). If you do you may...

Started by omer_ahmed_tabarik (669) in cellular phones • 7 responses • Last response by semodders (382) • 1 year ago
Tags: kills, rays, 2 people died, danger, death

Sorathian
(3629)
Which rays will be useful in finding freshness of fruits.??

Which rays will be useful in finding freshness of fruits.i m asking this to do a project on fruits.?

Started by Sorathian (3629) • 2 years ago • 0 responses
Tags: freshness, fruits, rays

ezzrssi
(9274)
Do you think it's possible

that we are living in the past... Take what we call stars for example. The light we see coming from the stars is actually light a year before that moment.

Started by ezzrssi (9274) • 2 responses • Last response by bkpdp1 (477) • 2 years ago
Tags: lights, rays, star, stars, universe

indiranaik
(1291)
can any one tell me what is cosmic rays?

.........

Started by indiranaik (1291) • 2 responses • Last response by srinathakarapu (2575) • 2 years ago
Tags: rays

Salsiccia
(254)
Why is the sky blue?

Hello all researchers and commentors!Well, the day is finally upon us. I know there have been questions that asked for your favorite answers, your favorite customers and your areas of expertise. ...

Started by Salsiccia (254) • 1 response • Last response by moneyseeker (744) • 2 years ago
Tags: dust, moon, rays, stars, sun

rsmith512
(1510)
Is this a sunrise or sunset?

It depends on your persepctive of the photo! What do you think and why?

Started by rsmith512 (1510) • 7 responses • Last response by mariamcj (474) • 2 years ago
Tags: guess, rays, sunrise, sunset

asmurthy
(2028)
Intuition, like the rays of the sun, acts only in an inflexibly straight line;

Intuition, like the rays of the sun, acts only in an inflexibly straight line; it can guess right only on condition of never diverting its gaze; the freaks of chance disturb it.

Started by asmurthy (2028) • 1 response • Last response by asmurthy (2028) • 2 years ago
Tags: intuition, sun, rays
 

blog results


Bugs & Cranks
(5)
Glogging! At Least, I Think That’s What the Kids are Calling it These Days

1:25 PM I had it all planned out. I was going to spend the afternoon sitting on my duff, watching baseball, and hopefully writing something witty and fun to share with everybody sitting in their...

Started in Bugs & Cranks • 1 year ago • 0 responses
Tags: detroit tigers, glog, rays, tigers