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Internet Communications While At Sea?
ubergamer1337 writes "Next semester I will be participating in a college study abroad program known as Semester at Sea. The gist of it is that over four months 600ish students sail around the world on a converted cruise ship, visiting diverse port cities while taking classes when we are between ports. Debates about its educational merit aside, my internet options while I will be at sea will be severely limited. We get just 100 minutes of internet access for the entire voyage, and once thats gone the only internet access we have is a university email address, which is limited to messages under a megabyte with no attachments. I have been pondering different ways to staying in contact with friends and family back at home without running to an internet cafe in every port, and I have already decided that I want to set up a blog that can be updated by email, but I wanted to ask the collective wisdom of Slashdot if anyone knows of any other ways to transmit more then just your standard message through email. Some things I would be particularity interested in being able to figure out would be a way to send photos (encode them as text?), and a way to get Wikipedia pages etc. emailed to me."
That works out to 55.5 seconds, roughly, per day. Do they calculate the time you use the computer hooked to the internet, or do they calculate the time actually used to transmit and receive data?
My wife and I love cruising, but she runs her own business and can't be away from email for that amount of time. Thankfully there are options now :)
Most ships these days have cell towers on the ship connected by satellite that usually provide GPRS data (and it looks like the SAS one does as well). The problem is they're considered international roaming, which costs tons of money. However, T-Mobile has an unlimited international 'email' option for blackberry for $20/mo that we've discovered includes BIS traffic through the web browser and even tethering (though we've heard conflicting reports about tethering, we've never been charged for it while at sea). There's always Mobi-shark for routing laptop traffic through the BIS, if tethering is a problem.
So we either tether to her laptop, or just use blackberry and a wireless keyboard and end up with a reasonable means of staying connected (granted, at dial-up speeds). Of course there's also the expense of the blackberry and monthtly plan, but that's only going to add ~2% to the cost of the semester.
There's also the option of paying for the wifi access on a per-minute basis. The latency sucks, but if you're using a fat email client (thunderbird, etc) it only takes us 1-3 minutes to sign in, send and receive messages, and sign out. On commercial cruises they charge somewhere around $.50/min, so when there's cabin based wifi we generally opt for that route, since it's way less hassle than the cell option, we don't have to worry about T-Mobile changing their policies on what's included, and $1.50 a day is not a huge price to pay relative to the cruise.
If they're limiting your email to text based only with no attachments, it's probably at their computers (since I'm not sure how they'd restrict you to that on theirs), which means your options for doing funky encoding stuff to get around it will likely be limited. If not, and you can use your own computer, there are tons of ways to convert anything to text (after all, that's what your email client has to do to send attachments, too). The downside is the receiving end would have to be smart enough to know what you're sending.
For wikipedia, I'd say take a copy with you.
Surf the RMS way: set up some kind of server at home that you can email a link to and it will wget it and return the content back to you via email. Since you have seemingly unlimited email access, this might be the most efficient way to surf.
You can also encode images into base64, don't know how big an image it would take before you hit the 1MB limit, but it's possible.
Reviewing just the first hour of video games.
Isn't the point of something like "Semester at Sea" to immerse yourself in the program, and become involved deeply in the studies and the people you're traveling with?
What you're wanting to do is like ordering escargot in a French restaurant and smothering them in ketchup.
Temporarily cutting off contact will be the best thing you ever do for yourself.
NetInfo connection failed for server 127.0.0.1/local
Did you consider that the limitations on Internet usage are in place for a reason? It may not be the bandwidth, it may be to force participants in this program to get away from their computers and interact with each other. The limits they place sound pretty reasonable to me.
With that said, I'd say satellite is an option while at sea. Otherwise depending on where you go perhaps a tethered cell phone would do the trick. Expensive either way!
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Screw your email.
Sounds like heaven.
I am very small, utmostly microscopic.
Speaking from experience, we hated going this route. You end up spending all of your time in ports searching for internet, which is really the last thing you want to be doing in some exotic foreign city :)
Plus, we've discovered that it's nearly impossible to research ahead of time, the language barriers alone make googling for it really hard.
That's a ridiculously good point. Applications like Gallery 2 have remote applications that I'm sure can be tuned to your disconnected-mode needs. Simply get everything ready to upload before you login, then when you're online all the human slowness will be taken out of the equation.
55.5 seconds per day doesn't seem like a lot, but if their internet connection is worth their (sea) salt even a 1mbit satellite link is almost 7 megabytes of data per day... assuming everyone else isn't doing the same thing at the same time of course.
If you're really interested in the process, check out Message Queuing. The idea is asynchronous communication between client/server so that you can do stuff when disconnected from the network, and saving your precious "almost" minute per day :)
-Matt
--- Need web hosting?
What? Am I the only old-timer here? There's an RFC standard that fits this PERFECTLY
http://www.rfc-editor.org/rfc/rfc1149.txt
"1 April 1990: A Standard for the Transmission of IP Datagrams on Avian Carriers"
Thomas Dzubin
Karma: Excellent. 15 moderator points expire sometime.
Check out how to Post to your wordpress blog using email. or possibly Internet Access Via Email, Get Web Pages to deliver web pages via html formatted email.
That is all.
Is it sad that I am more likely to recognize you and your posts by your sig than your name or UID?
There is pretty much next to nothing you can do. Since you are at sea you won't be able to use your cell phone to connect to the web.
A satellite phone with a very very slow dial up connection is your best bet, but too cost prohibitive. Here's a company that does its job fairly well http://www.globalstar.com/
The only way you'll have affordable and uninhibited internet access is to wait until you get to port.
However, for wikipedia you can actually download an offline version of the entire database. For a wikipedia like experiance follow the instructions on this website
http://www.blindedbytech.com/2006/08/31/how-to-install-wikipedia-for-offline-access/
Also the raw dump for the english articles is here:
http://download.wikimedia.org/
Oh you can also download a DVD version of Wikipedia from that link above. Definitely worth looking at!
Good luck! And definitely have an awesome time. That program sounds interesting and I will look into it as well since I'm a 2nd semester college freshmen.
An alternate suggestion would be to do everything yourself onboard, then release it all at once when you hit shore.
Ah, yes. The traditional way of sailors dealing with . . . things, since man first started traversing the waters.
You're welcome.
davejenkins.com |
Maybe it's some sort of strategy. They want the students to like see the world rather than sitting in their cabins in underweat with the curtains shut trolling slashdot and IMing each other about how bored they are.
Or something.
echo -e 'global _start\n _start:\n mov eax, 2\n int 80h\n jmp _start' > a.asm; nasm a.asm -f elf; ld a.o -o a;
There is a free email option. It requires a HAM license (note: morse code is not required anymore) and a SSB transmiter and a hundred foot antenna. A good SSB unit is around a thousand bucks.
It is only for text based non-commercial emails but functions anywhere (under most weather conditions).
Doesn't sound like a solution for a students desire to surf the web for free anywhere/anytime but email is available and pervasive just about anywhere.
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The severing of your electronic tethers is a luxury not to be taken lightly, my friend. Relax and enjoy the ocean breeze and various ports of call.
jiwire.com
Just get a HAM license, and use WINLINK/AIRMAIL and you can have all the free email you want.
http://www.winlink.org/
http://hamradio.arc.nasa.gov/meetings/HFradioatsea.html
You can run winlink over HF using any HF radio ($200+) and a decent wire antenna on the ship.
Its very popular for sea and also use in remote locations by Missionaries in Africa etc..
You can also use APRS to do automatic position reporting for your ship over HF Radio as well and your family would be able to track your location on a map. http://www.findu.com/
There are also various 'nets' where people all get together on a particular frequency and exchange messages etc. HAM's sill provide national message traffic passing services (Aka TELEGRAMS) for health and welfare messages for people. This is one of the main function that HAM's provide for RedCross, disaster locations etc.
You can come to the net and pick up and messages, and send a telegram to any family friends via HF voice.
http://www.cruiser.co.za/radionet.asp
Amateur(HAM) Radio is a very very valuable addition to worldwide boating activities.
-- Given enough time and money, Microsoft will eventualy invent UNIX.
Use the opportunity wisely. Soak up the new experiences. DOn't be one of those fools that travel halfway around the world to sit in a McDonalds or an internet cafe.
Forget about the internet, email, wikipedia etc.They'll all still be there when you're done.
Engineering is the art of compromise.
I've heard tales of an ancient form of communication that used small slabs of tree fiber carried by occasionally tempermental human beings. You can use an antiquated stylus-like device, which instead of selecting icons or doing script recognition on touchscreens of today, they leave behind a quasi-permanent colored marking on the tree fiber substrate, and these glyphical markings can serve to contain the message you would like to send. These tree fiber substrates are capable of including graphic attachments on one side, and hte mesage on the opposite side of the slab. They are often pre-encoded with a selection of graphics to choose from, and sometimes you can create a substrate encoded with a graphic of your own creation using a device able to translate your digital imagery files into the pigmentious container format which is compatible with the wood fiber slab. You will likely need to include a second attachment to these messages, in the form of a second, but smaller slab of wood fiber, a kind of wood-fiber-slab tax which the occasionally tempermental human transporters require, without this second attachment file then you risk your message and other attachments being lost in a sort of delivery black hole. You may have to search for an acceptable terminal which is compatible with sending messages in this format, and these terminals may not always be available to you. But the ancients once used such laughable methods with great success, so it may be somewhat usable for you as well.
I checked out the SAS website, and they say "Email Service and Internet Access - Participants can access web-based email accounts, such as Yahoo, AOL, Hotmail, etc. The technology fee charged to all students and lifelong learners provides 125 minutes of Internet access. Internet usage beyond 125 minutes will incur a charge on a per minute basis." So, he doesn't get cut off after 100 minutes. He gets 125 minutes, but he can pay for more. It's not as bad as he makes out.