found at planet fabulon.
Tuesday, September 15, 2009
prost.
i just returned to nottingham at the end of last week, but i'm leaving again tomorrow for munich, germany. it was a productive stint at home, and i'm very excited to visit munich again, but i admit that i could use a little more relaxation time at home before jumping into continuous-travel-alert mode again. oh well.
i'm looking forward to doing some work at the Max Planck Institute for Extraterrestrial Physics, having some family come visit, seeing a surprisingly large number of old friends, exploring a great city...
and, of course, i planned the trip to coincide with oktoberfest! ;)
i'm looking forward to doing some work at the Max Planck Institute for Extraterrestrial Physics, having some family come visit, seeing a surprisingly large number of old friends, exploring a great city...
and, of course, i planned the trip to coincide with oktoberfest! ;)
Monday, September 14, 2009
how many people are in space?
stay up to date with how many people are in space at this convenient little website:
http://www.howmanypeopleareinspacerightnow.com/
http://www.howmanypeopleareinspacerightnow.com/
Sunday, September 13, 2009
new supernova discovery record!
amateur astronomer, tom boles, has found 125 stars just after they've exploded... which means he has found more supernovae than any other human being!
congrats tom! and good work all you amateur astronomers out there!
congrats tom! and good work all you amateur astronomers out there!
Friday, September 11, 2009
science is REAL!
they might be giants have produced amazingly good music over the years, including one of my favorite kid's albums, NO! their new album is called here comes science and unsurprisingly, it's awesome! here's the video for the song, science is real.
and dont forget - science, it works bitches!
tip of the mic to the bad astronomer.
and dont forget - science, it works bitches!
tip of the mic to the bad astronomer.
Thursday, September 10, 2009
Wednesday, September 9, 2009
carnival of space #119
i leave ohio and the US tomorrow. back to england.
in the meantime, enjoy this week's carnival of space, hosted at the planetary society!
in the meantime, enjoy this week's carnival of space, hosted at the planetary society!
Saturday, September 5, 2009
explosion of choice
psychologist barry schwartz argues in this TED video that some choice is better than no choice, but it doesnt follow that more choice is better than some. i heartily agree!
for example, when i walk into a store, i do not need 54 different types of toothpaste to choose from. its overwhelming, and i dont know how to make the "right" choice. having more and more choices increases our expectations about the product, and thus lowers our satisfaction if our final choice is not "perfect!"
simplification is the way to go.
this video is about 20 minutes, and well worth it in my opinion.
for example, when i walk into a store, i do not need 54 different types of toothpaste to choose from. its overwhelming, and i dont know how to make the "right" choice. having more and more choices increases our expectations about the product, and thus lowers our satisfaction if our final choice is not "perfect!"
simplification is the way to go.
this video is about 20 minutes, and well worth it in my opinion.
Friday, September 4, 2009
Thursday, September 3, 2009
Wednesday, September 2, 2009
Tuesday, September 1, 2009
scenes from mauna kea
i have one more night left on the top of mauna kea for this observing run with UKIRT, so i thought i'd share some photos from the week.
across the cinder cone valley from where our telescope is located, sits the suburu telescope (left), the kecks (center), then NASA's infrared telescope facility (IRTF):
on UKIRT's side of the cinder cone are (L to R) the canada france hawaii telescope (CFHT), the gemini-north observatory, and the university of hawaii's 88-inch telescope.
UKIRT pointing towards the zenith inside its dome:
UKIRT's 3.8 meter diameter primary mirror.
inside the control room.
a quirk of high altitude - inflated potato chip bags!
air pressure lowers as you go higher and higher in altitude. the pressure is still high inside the sealed bag, so the air inside pushes out as usual, but feels no resistance from the low-pressure air outside. so the bag puffs up! (this is also why its a good idea to put any bottled liquids in bags when flying!)
using the night vision goggles you can even more clearly see the gemini telescope's AO laser shooting up to the sky!
here's a view of the UKIRT telescope, the milky way galaxy (a bit saturated), and glowing lava!
i never get tired of the views of this 14000 ft mountain and its shadow in the distance.
and some fun with panoramas. the scope on the left is UKIRT.
lake waiau on mauna kea is the 7th highest lake in the US at 13000 ft. its a short, but exhausting walk from the summit to get there.
more photos here!
across the cinder cone valley from where our telescope is located, sits the suburu telescope (left), the kecks (center), then NASA's infrared telescope facility (IRTF):
on UKIRT's side of the cinder cone are (L to R) the canada france hawaii telescope (CFHT), the gemini-north observatory, and the university of hawaii's 88-inch telescope.
UKIRT pointing towards the zenith inside its dome:
UKIRT's 3.8 meter diameter primary mirror.
inside the control room.
a quirk of high altitude - inflated potato chip bags!
air pressure lowers as you go higher and higher in altitude. the pressure is still high inside the sealed bag, so the air inside pushes out as usual, but feels no resistance from the low-pressure air outside. so the bag puffs up! (this is also why its a good idea to put any bottled liquids in bags when flying!)
using the night vision goggles you can even more clearly see the gemini telescope's AO laser shooting up to the sky!
here's a view of the UKIRT telescope, the milky way galaxy (a bit saturated), and glowing lava!
i never get tired of the views of this 14000 ft mountain and its shadow in the distance.
and some fun with panoramas. the scope on the left is UKIRT.
lake waiau on mauna kea is the 7th highest lake in the US at 13000 ft. its a short, but exhausting walk from the summit to get there.
more photos here!
Sunday, August 30, 2009
sand drawing - reflections of WWII
Kseniya Simonova is a ukrainian sand artist who recently won "ukraine's got talent." she interprets germany's invasion and occupation of the ukraine during WWII. beautiful and haunting...
Saturday, August 29, 2009
the big bang briefly
this little 2 minute video features the easily-understandable physicist janna levin.
you can read a bit more discussion about the big bang from the astronomist.
or watch more of janna levin during her appearance on the colbert report.
The Big Bang Briefly 1 from Keith Olwell on Vimeo.
you can read a bit more discussion about the big bang from the astronomist.
or watch more of janna levin during her appearance on the colbert report.
UKIRT - from 100 hours of astronomy
this video, created as part of the 100 hours of astronomy project for the international year of astronomy, describes the UKIRT telescope - where i'm spending my week.
Friday, August 28, 2009
twinkle twinkle little stars
while sitting inside the control room of a telescope, we are isolated from seeing exactly what's happening with the weather outside, except for when we venture out into the cold to check the sky. i like to go out and check fairly often, acclimate my eyes to the darkness, see the stars... but its cold and conditions can change rapidly enough, that its necessary to have weather monitoring devices working all the time (if possible!).
inside UKIRT's control room, there is a screen showing the realtime view from an all-sky camera! the image below shows that view... you can see the telescope on the left side and the milky way galaxy streaming across the sky!
the green plus sign is where our telescope is pointing and the little yellow crosshairs show the position of a companion telescope. at the upper left, above the white telescope, you can see a fainter silver dome with a big line shooting out of it! that is the laser used by the gemini telescope adaptive optics system. the laser is clearly visible when i go outside, and i think its great fun to watch it change positions!
so what are adaptive optics and why do we shoot lasers into the sky??
because photons of light from distant stars get shaken up as they pass thru the earth's atmosphere, causing them to "twinkle" to our eyes. the more the photons get shaken up, the bigger and "fuzzier" objects appear in a telescopic image (this is the major advantage of putting telescopes in space). if we can somehow determine the turbulence in the atmosphere as the photons pass thru it, we can correct for it and get sharper images of the stars!
adaptive optics is a fascinating technique that has recently come in to use by several major telescopes around the world to improve the image sharpness. to correct for atmospheric distortions, you use a specific guide star, a quick computer to measure how the star "twinkles", and a special deformable mirror that sits inside the optical path of the telescope.
the computer measures the changing light coming from the guide star every millisecond or less, then rapidly sends signals to adjust the shape of the special mirror in order to immediately correct for the "twinkle." if there is no natural guide star bright enough to use in the part of the sky that you happen to be observing, you can create an artificial guide star with a laser! a "laser guide star" it's called.
here's a nice example of how impressively the use of adaptive optics can improve image quality!
pretty amazing difference, no? adaptive optics systems are incredibly complicated to develop and produce, so not all telescopes use them, but they become more important as telescope mirror sizes increase.
now to go check the sky....
inside UKIRT's control room, there is a screen showing the realtime view from an all-sky camera! the image below shows that view... you can see the telescope on the left side and the milky way galaxy streaming across the sky!
the green plus sign is where our telescope is pointing and the little yellow crosshairs show the position of a companion telescope. at the upper left, above the white telescope, you can see a fainter silver dome with a big line shooting out of it! that is the laser used by the gemini telescope adaptive optics system. the laser is clearly visible when i go outside, and i think its great fun to watch it change positions!
so what are adaptive optics and why do we shoot lasers into the sky??
because photons of light from distant stars get shaken up as they pass thru the earth's atmosphere, causing them to "twinkle" to our eyes. the more the photons get shaken up, the bigger and "fuzzier" objects appear in a telescopic image (this is the major advantage of putting telescopes in space). if we can somehow determine the turbulence in the atmosphere as the photons pass thru it, we can correct for it and get sharper images of the stars!
adaptive optics is a fascinating technique that has recently come in to use by several major telescopes around the world to improve the image sharpness. to correct for atmospheric distortions, you use a specific guide star, a quick computer to measure how the star "twinkles", and a special deformable mirror that sits inside the optical path of the telescope.
the computer measures the changing light coming from the guide star every millisecond or less, then rapidly sends signals to adjust the shape of the special mirror in order to immediately correct for the "twinkle." if there is no natural guide star bright enough to use in the part of the sky that you happen to be observing, you can create an artificial guide star with a laser! a "laser guide star" it's called.
here's a nice example of how impressively the use of adaptive optics can improve image quality!
pretty amazing difference, no? adaptive optics systems are incredibly complicated to develop and produce, so not all telescopes use them, but they become more important as telescope mirror sizes increase.
now to go check the sky....
Thursday, August 27, 2009
height difference - star wars
here's a great, relaxed photo of most of our favorite star wars characters!
from left to right: Harrison Ford (Han Solo), David Prowse (Darth Vader), Peter Mayhew (Chewbacca), Carrie Fisher (Princess Leia), Kenny Baker (R2-D2), and Mark Hamill (Luke Skywalker). Undated. link
from left to right: Harrison Ford (Han Solo), David Prowse (Darth Vader), Peter Mayhew (Chewbacca), Carrie Fisher (Princess Leia), Kenny Baker (R2-D2), and Mark Hamill (Luke Skywalker). Undated. link
square root of minus one = i
super cute!
i love that they advertise this shirt in pink, although she's not going to get anywhere here counting with her fingers!!
i love that they advertise this shirt in pink, although she's not going to get anywhere here counting with her fingers!!
Tuesday, August 25, 2009
successful journey to the big island
i arrived on the big island with about a day and a half to enjoy before i had to start working. i stayed with a friend near the southeast coastline and certainly fulfilled the desire to have a quick island adventure holiday!
my confused body demanded sleep soon after i arrived, and awoke in time to admire the sunrise over the ocean!
we walked across a lava field...
saw beautiful flowers...
relaxed at a black sand (clothing-optional) beach...
enjoyed the company of a friendly dog named rufus...
went snorkeling... (last time i visited this part of the island, i didnt have the waterproof case for my camera!)...
saw lava trees...
and cooked some fresh ahi for dinner! very nice.
now i'm up at the 9000 ft astronomer's residence, called hale pohaku (HP). i have to stay here for the night to begin to acclimate to the altitude and night schedule. tomorrow evening i head up to the 14000 ft. summit!
my confused body demanded sleep soon after i arrived, and awoke in time to admire the sunrise over the ocean!
we walked across a lava field...
saw beautiful flowers...
relaxed at a black sand (clothing-optional) beach...
enjoyed the company of a friendly dog named rufus...
went snorkeling... (last time i visited this part of the island, i didnt have the waterproof case for my camera!)...
saw lava trees...
and cooked some fresh ahi for dinner! very nice.
now i'm up at the 9000 ft astronomer's residence, called hale pohaku (HP). i have to stay here for the night to begin to acclimate to the altitude and night schedule. tomorrow evening i head up to the 14000 ft. summit!
Monday, August 24, 2009
shine a light
here's an excellently produced little video about light and lightbulbs, created by clifford v. johnson who writes one of my favorite blogs, asymptotia.
Sunday, August 23, 2009
space day and moon watch
mark your calendars... we're putting on a "space day and moon watch" event at nottingham castle on october 31st (halloween!), 2009! i'm really excited for it, even though it's quite a complicated series of tasks to organize such a huge event!
thanks and props to mark hammonds (of supernova condensate) for designing the great poster.
thanks and props to mark hammonds (of supernova condensate) for designing the great poster.
Saturday, August 22, 2009
meeting a new telescope!
(a little too) bright and early tomorrow morning i leave for my first trip back to the states since i moved to england almost exactly one year ago!
the first stop is hawaii where i will have about 36 hours of free time before heading up the extinct volcano to meet a new telescope! i'm observing with the 3.8 meter united kingdom infra-red telescope (UKIRT) for the first time. i'll spend 7 nights awake at the summit of mauna kea observing targets for the UKIDSS project.
after the observing run, i'm going back to my hometown in ohio to see my family in person for the first time in over a year! woohoo! this is the longest stretch i've gone without seeing them and i'm really thrilled to get in some family time!
the first stop is hawaii where i will have about 36 hours of free time before heading up the extinct volcano to meet a new telescope! i'm observing with the 3.8 meter united kingdom infra-red telescope (UKIRT) for the first time. i'll spend 7 nights awake at the summit of mauna kea observing targets for the UKIDSS project.
after the observing run, i'm going back to my hometown in ohio to see my family in person for the first time in over a year! woohoo! this is the longest stretch i've gone without seeing them and i'm really thrilled to get in some family time!
Friday, August 21, 2009
shanghai, china
after viewing the total solar eclipse, and enjoying a brief stop in suzhou, i went to shanghai, china for a couple days.
i made it successfully from the train to the subway only to find this sign...
uh, where am i going?
this has always been the most intimidating thing about visiting countries whose written languages i cannot even make a guess at! luckily, my guide book listed the chinese characters and english language, so i found my way to the correct stop!
a mix of old and new.
simple and smooth jasmine tea.
shanghai is an architecturally interesting city.
parasols everywhere. i love parasols. i wish people in the western world wouldnt look at me like such a weirdo when i use one on a sunny day! there were people walking around campus moments before totality of the solar eclipse still holding their parasols over their heads!
deep fry and enjoy.
i have no idea why the broccoli in the picture is upside down! it made me laugh enough to buy the book!
one of the main tourist attractions in shanghai is the riverfront buildings of the bund. as i was walking thru the city to the bund, i noticed this crazy building off in the distance!
i was more interested in seeing this strange oriental pearl tower than the bund, so i decided to cross the river to the pearl tower side. instead of taking the metro under the river, i used the "bund sightseeing tunnel." the ride was ridiculous! i cannot really recommend taking the overpriced tunnel for anything more than a good laugh and 4 minutes of bright lights! i have to admit that i did enjoy it though, because all the excited chinese tourists rushed to the front of the little car, while i sat in back watching their reactions to all the lights.
the oriental pearl tower up close.
the view of the bund from the pudong side of the river.
(how adorable is her dress?)
i wasnt expecting shanghai to be lit up at night as much as it is! all the buildings with crazy architecture also have lights strewn all over them!
this dish tasted a lot better than it looks or sounds: eel and eggplant.
self-portrait while sitting on the maglev: the world's fastest train and the first commercial high-speed magnetic levitation line in the world. since i rode outside of peak hours, we only reached 301 km/hr (188 mph - as opposed to the normal operation speed of 431 km/h (268 mph)). we attained that speed in under 2 minutes, and were only able to enjoy the smooth ride for another 5 minutes before we arrived at the airport, 20 miles outside of the city. i wish i could take a maglev across the US!
more photos: here.
i made it successfully from the train to the subway only to find this sign...
uh, where am i going?
this has always been the most intimidating thing about visiting countries whose written languages i cannot even make a guess at! luckily, my guide book listed the chinese characters and english language, so i found my way to the correct stop!
a mix of old and new.
simple and smooth jasmine tea.
shanghai is an architecturally interesting city.
parasols everywhere. i love parasols. i wish people in the western world wouldnt look at me like such a weirdo when i use one on a sunny day! there were people walking around campus moments before totality of the solar eclipse still holding their parasols over their heads!
deep fry and enjoy.
i have no idea why the broccoli in the picture is upside down! it made me laugh enough to buy the book!
one of the main tourist attractions in shanghai is the riverfront buildings of the bund. as i was walking thru the city to the bund, i noticed this crazy building off in the distance!
i was more interested in seeing this strange oriental pearl tower than the bund, so i decided to cross the river to the pearl tower side. instead of taking the metro under the river, i used the "bund sightseeing tunnel." the ride was ridiculous! i cannot really recommend taking the overpriced tunnel for anything more than a good laugh and 4 minutes of bright lights! i have to admit that i did enjoy it though, because all the excited chinese tourists rushed to the front of the little car, while i sat in back watching their reactions to all the lights.
the oriental pearl tower up close.
the view of the bund from the pudong side of the river.
(how adorable is her dress?)
i wasnt expecting shanghai to be lit up at night as much as it is! all the buildings with crazy architecture also have lights strewn all over them!
this dish tasted a lot better than it looks or sounds: eel and eggplant.
self-portrait while sitting on the maglev: the world's fastest train and the first commercial high-speed magnetic levitation line in the world. since i rode outside of peak hours, we only reached 301 km/hr (188 mph - as opposed to the normal operation speed of 431 km/h (268 mph)). we attained that speed in under 2 minutes, and were only able to enjoy the smooth ride for another 5 minutes before we arrived at the airport, 20 miles outside of the city. i wish i could take a maglev across the US!
more photos: here.
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