eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
3590 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
4499 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
3999 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
565 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
ár a könyvön:
Az eredeti ár (könyvre nyomtatott ár), a kiadó által ajánlott fogyasztói ár, amely megegyezik a bolti árral (bolti akció esetét kivéve).
1690 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, abban az esetben az eredeti ár (könyvre nyomtatott ár) az érvényes, kivétel ez alól a boltban akciós könyvek.
ár a könyvön:
Az eredeti ár (könyvre nyomtatott ár), a kiadó által ajánlott fogyasztói ár, amely megegyezik a bolti árral (bolti akció esetét kivéve).
1725 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, abban az esetben az eredeti ár (könyvre nyomtatott ár) az érvényes, kivétel ez alól a boltban akciós könyvek.
ár a könyvön:
Az eredeti ár (könyvre nyomtatott ár), a kiadó által ajánlott fogyasztói ár, amely megegyezik a bolti árral (bolti akció esetét kivéve).
9990 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, abban az esetben az eredeti ár (könyvre nyomtatott ár) az érvényes, kivétel ez alól a boltban akciós könyvek.
eredeti ár:
A termék ára Líra Könyv Zrt.-nél, ami nem tartalmaz online kedvezményt.
4290 Ft
online ár:
Webáruházunkban a termékek mellett feltüntetett fekete színű online ár csak internetes megrendelés esetén érvényes. Amennyiben a Líra bolthálózatunk valamelyikében kívánja megvásárolni a terméket, akkor az adott boltban lévő ár az irányadó.
by richord tresch fienberg |I - '^THT^i I 'i 'i iV'tv.-J1Parallel Universesone of the more intriguing ideas to gain a foothold in modem cosmology is the notion that ours is one of many parallel universes. Each supposedly sprouted from its own big bang with its own pecuhar mix of matter and...
focal pointThe Glory Dayswhen was amateur astronomy at its zenith? Travis K. Kircher wonders.Recently I found myself sifting through filing cabinets at the public library here in Louisville, Kentucky, searching for records of long-forgotten people and events. I came across a manila folder marked...
New ArrivalsThe typical American worker has been at his or her current job for less than 10 years. So it's amazing to think that half our editors have been at Sky Telescope for one to three decades. With "only" 17 years under my belt, I guess I'm just getting broken in!I think similarly long...
No Adjectives Necessarywhat's the difference between a professional astronomer and an amateur? Most of us would probably answer this way: A professional astronomer is someone who gets paid to study the universe, and an amateur is someone who observes for the fun of it. In simpler terms, a...
by richard tresch fienberg jFrom Venice to Venusi had to choose my topic for this column before traveling to Italy for the June 8th transit of Venus across the Sun (see page 140). Three centuries ago, Edmond Halley described such an event as "by far the noblest [sight] astronomy affords." Back in...
by richard tresch fienberg ^1Good Stuff CheapYou can get a surprisingly good telescope for surprisingly little money this holiday season.THE HOLIDAYS ARE APPROACHING AGAIN, and telescopedealers are gearing up for their busy season. While a serious amateur astronomer is as likely to buy a new...
by richard tresch fienberg |11New and Improved!many products that proclaim themselves "new and improvedl" are really just the same old thing in a fancier package. That's not the case with this issue of Sky Telescope, the first of our new design. We've worked for nearly a year to make the magazine...
The GlazeChris Alper discovers an odd zoological phenomenon that occurs all too often when he's around.I once read that many animals have clear nictitating membranes that snap over their eyes to shield them from dust and wind. I have now confirmed that this protective membrane, in fact, exists in...
Silent(ly) RunningJay White ponders the lonely isolation of a spacecraft bound for the stars.It's been more than 30 years since that night when the lights in the theater came up and tears filled my eyes. The film Silent Running, just ended, should have affected me because it showed Earth's last...
Last Tango in MinneapolisDouglas Aalseth bids farewell to his longtime partner.We knew the end was coming for months. Since 1961, generations of people had come through the doors to see what tire grand old lady in the library could do. OK, maybe her star fields weren't as bright as they once were....
focal pointScience and Religion: Can We Talk?George V. Coyne, S.J., addresses a timeless topic from his perspective as an astronomer-priest.Did the universe begin out of nothing? Did it have a beginning at all? Is there anything special about human existence? Is there a God? Even now, pairing off...
focal pointGleanings from the GlassIn the optical shop ofAdler Planetarium, Richard Fisherlearned valuable lessons about telescopes and life.Somewhere in the library of a Chicago public school is a well-worn book bound in green cloth. My name might be the only one on the dog-eared card tucked...
focal pointSky Writingmentioned in the column. Her friends were always amazed when she could then point out details of the night sky to them!I believe the general public is eager for good, easy-to-read astronomy columns. There's too much astrology in print, along with too many stories about...
focal pointThe Stars in OppositionNicole Gordon looks formeaning in late-night munchiesand the Milky Way.It is after midnight, and I am sitting on an outcrop of volcanic rock at the edge of the sea on the Big Island of Hawaii, munching on trail mix and gazing at the sky. It strikes me that, while...
Adventures in Sidewalk AstronomyKevin Bourque frequently strutsline, asking intelligent questions and expressing their thanks. We talked for a while about astronomy and skateboards and other weighty topics. As they left, I thanked them for being good customers. I sent them off with a heartfelt...
spectrumThe Wrong StuffWhen Apollo 17, NASA's final lunar-landing mission, ended 30 years ago this month, any-thing seemed possible. After all, it had taken only eight years to go from Yuri Gagarin's first orbit of the Earth to Neil Armstrong's first step on the Moon. Sure-ly by the dawn of the...
Bad-Guy Editor'm an idiot. I don't know any astronomy. I pander to advertisers. I don't care what readers think. I'm interested only in money. I'm closed-minded. I'm a bigot.Yes, I'm bad. At least, that's what I'd think if I were to believe everything that's been said to me, or about me, on the...
spectrumSituational Awarenesschuckle whenever I'm with someone who notices the Moon up in broad daylight for the first time. The reaction is invariably a mix of surprise and alarm: "What the ? Something's wrong! How can the Moon be up during the day?!" It's not really funny, though it's sad....
The Outreach Imperative recently traveled to the Canary Islands for a conference entitled "Communicating Astronomy." Hosted by the Institute of Astrophysics of the Canaries, the meeting attracted attendees from the Americas, Europe, and Australia. Among them were representatives from many of the...
JIBack to SchoolIt's that time of year when students will (we hope) put down their videogame controllers, pick up their pencils (or laptop computers!), and return to classrooms ready to learn. Teachers will return to those same classrooms ready to teach. But what should they teach? What should...
^ Dark Days for Dark Nightshe editors of Sky Telescope, and quite a few of our other staffers too, are stargazers, telescope makers, researchers, and/or astrophotographers. Because we love astronomy, and because we love sharing it with others, we feel that one of our roles at the magazine is to...
SpectrumEyes on the PrizeNobody goes into astronomy to get rich. Most astronomers are driven instead by intense curiosity about the universe around us. All the same, no astronomer vi'ould turn down a big check, especially one with no strings attached a Nobel Prize, for instance. Too bad there...
We're Everywheref an important astronomical event happens anywhere in the night sky at any time a supernova, a lunar occultation, a storm on Saturn it will be observed by readers of this magazine. I can say this with confidence because Sky Telescope has subscribers in 135 countries around the...
spectrumSign of the TimesRICH HARRINGTONI'm no Taurus, but 1 know bull when I see it. And I saw plenty when I opened my Boston Globe last August 28th and read the headline "Heavens Smile on Astrology School." The Astrological institute in Scottsdale, Arizona, is now an accredited institution of...
spectrumSteady As She GoesBI y coincidence this January 2001 issue of Sky Telescope is volume I 101, number 1, so we begin the new millennium (for real this time) I with our own special turn of the odometer. This doesn't mean ST is 100 years old, though. From 1941 through 1959 one volume did equal...
My Hero, the TyrantOn my first trip to London 23 years ago, I was wandering through Westminster Abbey when I happened to look down at my feet. The large flagstone on which I stood was inscribed in Latin: Hie deposi-tutu est Quod Mar tale fuit Isaaci Newtotti. Below me the great master lay in...
Sixty Years and Counting Participants on Sky Telescope's tour to Africa for the June 21st total solar eclipse witnessed an unusually lengthy and lustrous "diamond ring" as the last bead of sunlight slipped behind the Moon. How appropriate, as this year marks the diamond anniversary of Sky ...
STCPHEN JAMES O'MEARAOne World, One HobbyOn September 4th National Public Radio aired a report on the overt racism sometimes encountered by foreigners in Japan, where those born elsewhere are called gaijin "outside persons." The broadcast perplexed me, because I had just returned from the Tainai...
New Kids on the BlockAs the universe expands, so does the amount of astronomical research conducted by professionals and the number of telescopes used by amateurs, k In our ongoing effort to keep readers well informed about both the science and the hobby, Sky Telescope has expanded too. When I...
The Great MythIt happened again: A speaker at a recent gathering of amateur astronomers got up and said, "This is the most expensive hobby you could have," and the old hands in the audience responded with a loud murmur of assent. I've heard this claim repeated often, and it always elicits the same...
It's Party Time!Perhaps you'd like to check out a new telescope or eyepiece, but there's no astronomy store in your area. Maybe you live in a light-polluted city or suburb and wish you could spend some quality time under truly dark skies. Perhaps you enjoy looking at the Moon and planets with your...
Cosmologk lllogicMy grandfather was born 100 years ago and grew up in a static universe with no beginning or end. A century later, my sons are growing up in a universe that exploded from nothing billions of years ago and is thinning out as the eons go by. This overhaul of our world picture is...
Unfinished Businessn 1964, when in the third grade, I made a poster showing the nine planets of our solar system. 1 could find decent photographs of only Mars, Jupiter, and Saturn. Astronauts wouldn't photograph the Earth from lunar orbit for another four years. Mercury and Venus showed phases like...
Move Over, Harry!Unless you've been living on another planet, youVe heard of Harry Potter, the bespectacled adolescent wizard at the center of four (going on five) best-selling children's books and an eagerly anticipated Hollywood movie (the first, no doubt, of several). My kids, like so many...
Running Running When Gary Seronik showed me the final stats concerning our Messier Marathon (his summary appeared in the July issue, page 122), I was disappointed. We had given this competition solid play in the March issue and on our Web site, with lots of tips on how to do the job right. But...
Why Don't You Name Stars?Go ahead! There's nothing to stop you! You, anyone else, any enterprise has an equal right to moniker stars.It's widely, though incorrectly, believed that the International Astronomical Union has the prerogative to name stars. Yes, the lAU is officially recognized to name...
Gravity Matterso you play lotto or some other get-rich-quick rip-off? Do you plop down a buck and happily accept odds of tens of millions to one?Let's turn the game around. Plop down hundreds of millions of dollars (or even enough billions to make Hubble blush) and claim the odds of winning are one...
And the Big Loser Was The winners of our 20th-century, inspirational-image poll were showcased last month, beginning on page 37. I had two images at the top of my personal list. One was the poll s first choice, "Earthrise, Apollo 8." The other was "Electromagnetic Sky." So 1 was mightily surprised...
Reading Last Summerhis month's editorial may seem to be a book report, but it isn't. It's an appreciation to Allan Chapman for his recently published book, The Victorian Amateur Astronomer,* subtided Independent Astronomical Research in Britain 1820-1920. His was the best astronomy book on my...
spectrumNot in Kansas Anymore'm delighted that one of last year s Ig Nobel Prizes for achievements that "cannot or should not be reproduced" was won by the Kansas State Board of Education. Its "accolade" stemmed from a decision not to test students on their understanding of either Darwin's theory...
Coming: More Hype! Yikes!!Fasten your seat belts here we go again!The media blitz last December that touted the brightest Moon in 133 years is probably still fresh in your mind. But I'll bet a lot of you have already forgotten the name of the asteroid that only two years ago was destined to do us...
Best of the Bestlove to make lists, especially of extremes. I have enormous fun with a pair of talks I give: the 10 greatest discoveries in astronomy and the 10 greatest unanswered questions. Of course, such lists are subjective and can never be completely accurate. But that's why they're so much...
spectrumMy Always Bossy predecessor, Joe Ash-brook, once quipped that astronomers shouldn't live too long after they retire. Their contributions will soon be forgotten, and contemporaries to write incisive obituaries will die off.I'll bet only one reader in 100 recognizes the name Charles Federer,...
spectrumIt's Time to Say Goodbyeuriously or perhaps not I'm paying only half-attention as 1 begin to write this, my last editorial. My concentration has been shangliaied by a mom and three baby skunks, who have just wandered into our backyard to gobble fugitive birdseed. Outside my study window...
spectrumBabylon RevisitedBabylon was a great city.Her ntercliantiise was of gold and silver,Of precious stones, of pearls, of fine linen.so begins William Walton's characterization in Belshazzar's Feast, an epochal work in British choral music. It ends withMake a joyfttl noise to the God of Jacob,...
LJspectrumOn to a Third SarosThe Moon's shadow was still racing toward the eastern horizon when my brain inexplicably began to calculate: 1999-1963 = 36; 36/2 =18 = 1 saros cycle. Suddenly 1 realized that I'd been around the eclipse block exactly twice, from Maine in 1963 to Turkey in 1999. It's...
How many times have we been flogged by hoopla concerning the Y2K computer bug? A couple of years ago we were told that when the year flipped to zeros planes would crash wholesale, financial institutions would run amuck, and PCs wouldn't fire up. Now it seems that only ripples are likely to blemish...
LJspectrumHigh-Grading the Oref you go online and access NASA's Astrophysics Data System (http: //adswww.harvard.edu/), you can get abundant snapshots of what's happening in astronomical research. In the database for 1997, for example, there are 19,525 citations, "a pretty good approximation of the...
Radar Views of VenusTHE SOVIET UNION has two scientific spacecraft in orbit around Venus, and American planetary scientists are puz-zled. When Veneras 15 and 16 reached the planet last year (on October lOth and 14th, respect àvely), t here was widespread spéculation that each craft carried a...