I am an astrobiologist, sci-fi geek, and professor of everything groovy. I write about science, culture, math, history, space, and science fiction. Perhaps like you, I'm seeking a greater understanding of the nature of life and asking myself why all of this really matters. Come with me, and we'll ask some questions together.
Sunday, February 28, 2016
The Most Satisfying Video in the World
Here's something fun that you might catch on the interwebs right now. Digg has brought us a video that is just, well, satisfying. It's a collection of awesome technologies at work making slices, pulling material apart, crushing materials together, washing, building, breaking, cutting, rolling, falling, assembling, burning, and more... The music in the video isn't all that satisfying, in my opinion, but it's most certainly worth the watch:
Saturday, February 27, 2016
Streaming Meditation: Red Blocks
What do you see?
Thursday, February 25, 2016
Nothing Else Matters, on Sitar
Here's an awesome version of Nothing Else Matters, as played along on the sitar by Ashish J. It's fantastic throughout, but definitely stay with it for the solo, you will not be disappointed.
Wednesday, February 24, 2016
Voyaging, for Almost Four Decades
We'll soon be closing on 40 years since the launch of Voyagers 1 and 2. These missions have done so much for planetary science and are still alive, continuing to send data back to us about the space environment along their travels. They may last as much as another 5 or 10 years before they run so low on power that all of their instruments shut down.
Even after the Voyagers have shut down their instruments and died, they will still travel; out there amongst the stars, the furthest reach of humanity, they will continue on.
Tuesday, February 23, 2016
Jupiter, King of Worlds
Jupiter is a behemoth of planetary mass in our solar system. Here you can see the relative masses of the 8 planets. (image from Das steinerne Herz on Wikipedia) |
It was Galileo's discovery of four of the moons of Jupiter in 1610 and his writing of them that nearly caused the Catholic Church to murder Galileo (the idea that there could be moons orbiting other planets was certainly considered blasphemy against the church at that time). Below you can see a page from the Sidereus Nuncius ("Starry Messenger"; Galileo's 1610 book on his astronomical observations), where Galileo drew Jupiter and the moons he had discovered:
The Pioneer 10 spacecraft was the first extension of humanity to fly by Jupiter back in 1973. Here's one of the images taken during that encounter with the giant world. Pioneer 10 was the first spacecraft to measure the radiation and magnetic fields surrounding Jupiter. It was also the first to take images of the moons of Jupiter up-close. Pioneer 10 passed within 81,000 miles of the cloudtops of Jupiter on it's flyby over 40 years ago.
Jupiter has since had several other spacecraft go zooming by, most of which at least took pictures if not full-on collecting data and targeting Jupiter and its moons for observation; for instance, check out this table I stole from Wikipedia on spacecraft that have flown by along with the dates of closest approach and the minimum distance from Jupiter at that time:
-----Spacecraft----- | Closest -----Approach------ | -----Distance----- |
---|---|---|
Pioneer 10 | December 3, 1973 | 130,000 km |
Pioneer 11 | December 4, 1974 | 34,000 km |
Voyager 1 | March 5, 1979 | 349,000 km |
Voyager 2 | July 9, 1979 | 570,000 km |
Ulysses | February 8, 1992 | 408,894 km |
February 4, 2004 | 120,000,000 km | |
Cassini | December 30, 2000 | 10,000,000 km |
New Horizons | February 28, 2007 | 2,304,535 km |
The only spacecraft so far to be sent into orbit of Jupiter was the Galileo Spacecraft, which operated in the Jovian system for over 8 years (from its arrival in December of 1995 until we crashed it into Jupiter (something we like to call "de-orbiting") in September of 2003). Galileo was used to study Jupiter's atmosphere and rings and to image and study the volcanoes on Io. Galileo discovered that Ganymede has its own, very strong magnetic field and really gave us most of the best data from which we have concluded that there is likely a deep subsurface ocean on Europa. The Galileo spacecraft really unlocked Jupiter and set the grounds for future spacecraft to visit that giant world.
An artist's concept of the Galileo spacecraft at Jupiter, with Io's volcanoes erupting nearby |
Following Juno, there are two missions in the works for studying the icy moons of Jupiter. JUICE (the Jupiter Icy Moon Explorer) is an ESA mission slated for launch in 2022. JUICE is designed to study primarily Ganymede and Callisto, though it should also fly by Europa a couple of times as well. A NASA mission set for launch on the early 2020s (likely 2022, as of now) is also in the works. The mission is currently called the Europa Multiple-Flyby Mission, though that name will surely change when the mission is more fully developed. This mission will focus on studying Europa. It will tell us about the surface processes and composition of Europa, will tell us a bit about the internal geology and composition of this moon, and, most importantly for astrobiology, will seek to determine the existence of Europa's ocean and determine what it can about the composition and possible surface-interactions of this ocean.
Though JUICE and the Europa Multiple-Flyby Mission will target the icy moons of Jupiter, they will teach us a lot about the Jovian system in general (like how Jupiter's magnetic field and the chaotic whipping of particles through that field effect the moons of Jupiter). Taken along with Juno, the next couple of decades of research on Jupiter should be highly revealing, telling us a lot about the king of the planets but also helping us to uncover new mysteries and new questions about this behemoth in our solar system.
In closing out this post, here is a quote about Jupiter, the god, from Ovid:
"Jupiter, from on high, smiles at the perjuries of lovers."
When it comes to the "perjuries of lovers" on Earth, Jupiter the planet, just as Jupiter the god, most certainly has no interest in our shortcomings. Though there is a beautiful history to consider in astrology, and Jupiter most certainly has played a prominent role there, the real test of time for Jupiter has revealed this king of our planets to be a massive and active monster of nature, though also beautiful in its presentation of itself to the universe.
Jupiter Drawing, from Kelvin Ma at Wikipedia
|
Monday, February 22, 2016
Sulfur in Yellows, Reds, and Blues, Oh My!
Sulfur burning at Kawah Ijen (image: Oliver Grunewald) |
Sulfur also presents itself in some awesome colors when it's in its elemental form. For instance, here's a picture of solid elemental sulfur at room temperature from my book shelf:
Red molten sulfur at Kawah Ijen volcano (iamge: Photovolcanica) |
Yellows and reds are cool, but elemental sulfur also burns in a beautiful blue color. Here's a video from scientificpages on Youtube which shows powdered elemental sulfur burning in open air:
In the video you can see the sulfur turning red as it melts, but you can also see the blue flame forming over it.
Burning sulfur is something that anyone can try at home, but finding large amounts of elemental sulfur melting and burning in nature will only happen in a few places. One of the best known places where this occurs is in Kawah Ijen volcano, in East Java, Indonesia, where the elemental sulfur extruding from the volcano is harvested by a local company (the image at the top of this post is from Kawah Ijen). Some of the best pictures of the sulfur in Kawah Ijen have been taken by Oliver Grunewald. Here's one of Grunewald's photos of the sulfur being harvested at night:
It's truly a beautiful location for seeing elemental sulfur in all of its various colors.
Burning sulfur is something that anyone can try at home, but finding large amounts of elemental sulfur melting and burning in nature will only happen in a few places. One of the best known places where this occurs is in Kawah Ijen volcano, in East Java, Indonesia, where the elemental sulfur extruding from the volcano is harvested by a local company (the image at the top of this post is from Kawah Ijen). Some of the best pictures of the sulfur in Kawah Ijen have been taken by Oliver Grunewald. Here's one of Grunewald's photos of the sulfur being harvested at night:
Friday, February 19, 2016
On the road again
We're heading off for a mini-vacation today. We're going to do some hiking and playing in Taos, New Mexico. It's definitely good to take breaks from time-to-time to re-energize and to live life a bit.
Taos Pueblo, by Randy Follis |
Thursday, February 18, 2016
Wednesday, February 17, 2016
Sunday, February 14, 2016
No well is an ordinary well
Do you remember the well in Final Fantasy?
The "ordinary well" that gave this message:
The "ordinary well" that gave this message:
Every well is a hole drilled into the Earth in pursuit of the sustaining fluid of life. Some wells are drilled in hope of finding water. Some wells are drilled where knowledge and experience have told us there will be water. Some wells have dried up long ago and now present nothing more than a vertical cave created by humans.
Some wells are small and some are big, some supported by brick or metal, while others are drilled in rock strong enough to support itself. Some wells support entire communities of people while other wells have provided for a sense of fulfillment of individual dreams and wishes (even if that seems like idle hope). No well is an ordinary well.
Friday, February 12, 2016
HIIT It All
My legs and back are recovering from a heavy workout yesterday, so I took some time to put together a few more workouts for the coming weeks. Here's one that I think will offer a good challenge.
I'm calling this one "HIIT It All", since it uses High-Intensity Interval Training (HIIT) and it's aimed at hitting a little bit of every major muscle group. This one's a little less cardio-focused than some HIIT workouts, but I have a feeling it will still feel like cardio by the end.
HIIT It All uses Tabata-style training, with alternating sets of full-on effort and rest. The Tabata workout traditionally uses 20 seconds of active work followed by 10 seconds of rest. HIIT It All however uses the following sequence:
Here's a table showing the overall setup. Of course, there are all kinds of exercises that could be used in a workout like this, but I threw some together that seemed to jive with the goal of doing a whole-body HIIT:
I think the weight load for a workout like this should be pretty low (since all of the breaks are short). I'll probably use 62 lb. kettlebells for the squats and farmer's carry, 10 or 15 pound dumbbells for the side planks, and 25 lb. dumbbells for the curling exercise.
Let me know what you think (or if you have questions).
HIIT It All uses Tabata-style training, with alternating sets of full-on effort and rest. The Tabata workout traditionally uses 20 seconds of active work followed by 10 seconds of rest. HIIT It All however uses the following sequence:
- 1 superset of "40 seconds on, 30 seconds off" for 2 exercises
- 2 supersets of "30 seconds on, 20 seconds off" for 2 exercises
- 3 supersets of "20 seconds on, 10 seconds off" for 6 exercises
- 2 supersets of "30 seconds on, 20 seconds off" for 2 exercises
- 1 superset of "40 seconds on, 30 seconds off" for 2 exercises
-after each group of supersets, take an extra minute of break time to setup for the next superset
Here's a table showing the overall setup. Of course, there are all kinds of exercises that could be used in a workout like this, but I threw some together that seemed to jive with the goal of doing a whole-body HIIT:
Total Supersets
|
Time
|
Exercise
|
Notes
|
Total Time (Cumulative)
|
1x
|
0:40
|
Push-ups + Knee Tucks
|
Follow each push-up with a knee tuck.
|
3:40
(3:40)
|
0:30
|
Rest
|
|
||
0:40
|
Pull-ups + Knee Raises
|
Follow each pull-up with 3 knee raises (add kipping only if needed)
|
||
0:30
|
Rest
|
Add 1:00 to last set
|
||
2x
|
0:30
|
Plank w/ Arm Lifts
|
Alternating raises of arms in front
|
4:20
(8:00)
|
0:20
|
Rest
|
|
||
0:30
|
Sumo Deadlift
|
Add calf-raises in the second set
|
||
0:20
|
Rest
|
Add 1:00 to last set
|
||
3x
|
0:20
|
HSPU
|
Hands-stand pushups (add kipping only if needed)
|
10:00
(18:00)
|
0:10
|
Rest
|
|
||
0:20
|
Cross Crawl
|
a.k.a. Bicycle Crunches
|
||
0:10
|
Rest
|
|
||
0:20
|
Band Pulls
|
Use heavy resistance band; pull down from above (a.k.a. band lat. pull-down)
|
||
0:10
|
Rest
|
|
||
0:20
|
Side-to-Side Hops with Knee Raises
|
Leap from left to right and then bring up left knee into a tuck and then alternate
|
||
0:10
|
Rest
|
|
||
0:20
|
Dips + Kicks
|
Dips with knees bent; at the bottom of each dip do a front kick with one foot.
|
||
0:10
|
Rest
|
|
||
0:20
|
Reverse Crunches
|
Legs as straight as possible
|
||
0:10
|
Rest
|
Add 1:00 to last set
|
||
2x
|
0:30
|
Dumbbell Side Plank
|
Change sides on second set
|
4:20
(22:20)
|
0:20
|
Rest
|
|
||
0:30
|
Goblet Squats
|
Add calf-raises in the second set
|
||
0:20
|
Rest
|
Add 1:00 to last set
|
||
1x
|
0:40
|
Curl into Shoulder Press
|
|
2:40
(25:00)
|
0:30
|
Rest
|
|
||
0:40
|
Farmer's Carry
|
|
||
0:30
|
Deep Horse Stance Hold
|
Just to finish it out strong
|
I think the weight load for a workout like this should be pretty low (since all of the breaks are short). I'll probably use 62 lb. kettlebells for the squats and farmer's carry, 10 or 15 pound dumbbells for the side planks, and 25 lb. dumbbells for the curling exercise.
Let me know what you think (or if you have questions).
Subscribe to:
Posts (Atom)