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Sani Pass - 1 May 2015 - F650GS Twin

Bike Ride 62 - Groot-Marico to Home

The last day of our 3 day outing, and it turned out to be quite a long day with all the stops we made on the way home.

We woke up after a good night's rest, and I got myself and Trish a cup of coffee and tea from the kitchen. Had it with some rusks we had over from the previous morning.

I went to the store room and got out my bike, and parked it with all the others on the lawn. then we sat down to a scrumptious breakfast, which contained some venison livers. It was delicious. Then we went back to the room packed all our stuff and then made our way home. Slowly. We stopped for photos at  8 Places (7 for the BMW Challange) and 3 geocaches.

We first went back into Groot-Marico for the Town Photo (Photo 1), and then got some petrol. Then made our way to Swartruggens (Photo 2) for a town photo and geocache. I must say the toll road costing R75.00 is ludicrously expensive, and must be the worst toll road I have ever ridden on. It is bumpy as hell.

We stopped at the Selons river bridge for a quick smoke break and geocache, and the onward to Boshoek for another town photo. We also stopped at a "Welcome to" sign by Pokeng (Photo 3).  I found it funny when I thought of "Welcome to Pokeng (nothing)". There was a huge stadium to our right as we approached Boshoek from the south. I thought it might be a 2010 World-cup stadium, but I was later to learn that it was not as we saw the real 2010 stadium later on in Rustenburg.

Photo 1

Photo 3

Photo 2

We took our Boshoek town photo by the post office (Photo 4), and then also stopped at a small antique store just up the road to buy some small souvenir of our trip. Trish got a "Love is patience" tile, and I saw a small knife which I wanted to add to my small collection.

Then it was through Rustenburg on the  R104, and we stopped at Kroondal for our next photo (Photo 5). We also looked for a place to have a drink, but we saw non to inviting. Then by mistake we got onto the N4 and off again at Buffelspoort where we had something to eat and drink at the garage. There were lots of other GS riders stopping at the garage, and riding past. There must have been some weekend thing on the go nearby for them. We took a photo here as well, but it was not part of the BMW Challenge (Photo 6).

Photo 4

Photo 6

Photo 5

Then onward over the N4 to Marikana, where we took a town photo in front of a hardware store. Then carefully road further in to get to Wonderklip, but since there was a sand road going to Wonderklip and Wonderklip is a tar town challenge decided to turn around, as the dirt road looked a bit dodgy. But looking at the GPSr I saw it was only 3 or 4 km away and the route around would take us a lot longer. Also if we did not do the town now then we would not be back this way in a long long time. So we turned around again and rode there along the train tracks and past a big mine. We were also stopped at a train crossing before leaving Marikana by a passing train.

Must say we did not feel to safe riding through Wonderklip. There was some uneasiness for both Trish and I so we decided to rather turn around and take a photo at the hospital sign as we entered Wonderklip. After the photo we got back on the bike and looked forward to the tar road ahead. It took us at lease 4 km before we hit the first patch of tar. I dont think a RT will make it there in one piece. The dirt road is quite bumpy.

Photo 7

Photo 8

Once we hit the N4 is was plain sailing all the way to Tant Malies where we stopped for a smoke break, and decided to get some Dutch goodies from the Windmill on the other side.

Its lekker to e on a bike. There was a long queue of cars to get through the tunnel, and us with 2 other bikes just split laned past them all, and without the need to stop got through the tunnel no problem.

We drank a quick milkshake at the Windmill, and then bought our goodies inside, and then did the last leg of our journey home. We arrived home just after 5PM. A long day ... but a good day.

We did a total of  980 km in the 3 days, and a total of 13H30 hours moving time.

 

Bike Ride 61 - Delareyville to Groot-Marico

This was an awesome day, although we arrived at Groot-Marico an hour later then I had planned / wanted to.

We took our town photo in front of the B&B where we stayed and headed north around 08H15 through to Sannieshof and then Biesesvlei, and then further onwards to Lichtenburg. In Lichtenburg we took out town photo, did two geocaches (one was by Gen Delarey's grave site), visited 2 petrol stations to get to the loo, and then headed further north to Ottoshoop.

Ottoshoop is a strange town. Seemed like it had one street, and lots of bumps. A bump about very 150 meters. I went over the first few but soon enough looked for ways around them. And I was not the only one all other verhcles had made new paths around the bumps as well. So much so that there was almost a permenant dirt road next to the tar road. We saw quite a few houses, and it seemed like of people who had retried here. The police station looked like the only "business" in town. The libruary was closed where we took out town photo.

 
After the photo we went for coffee at "Die Gat - Pub and Grill" just outside of town. They had to rush out and buy some coffee and milk. We also had a quick plate of chips and then left for Groot-Marico knowing that we were now somewhat late.

We did a quick town photo stop in Zeerust, and then arrived at Groot-Marico just after 12H30. Most of the BMW club members were there already. But they were just moving into a small building where we were entertained by some Herman Charles Bosmad stories, poems (set to music). I did not think it would be that great, but I was blown away by the way they presented. 10 out of 10 for the living museum at Groot-Marico.

Then it was off to the farm where we would be staying for the night, and where we would get to sample some mampoer. Johan the farm owner entertained us the whole afternoon, by telling us how he makes mampoer the traditional way, and the whole process involved to get to the final product. After the lessons in making the mampoer, we were then escorted to the log veranda were we were now instructed in the proper way to consume the mampoer. Stoelle!










After the sampling we then had the most amazing dinner of venison meat, potatoes and veggies. It went down a treat. Then it was off to bed to get some rest after the whole days excitement.

Bike Ride 60 - Home to Delareyville

Some one at the BMW Motorcycle club in PTA organised a trip to Groot-Marico to go and "sample" some mampoer. Since it has been almost a year since we last added some new towns to our visited list, I thought it was the right time to combine the two thoughts into a single long weekend outing.

I got a days leave from work, and on Friday the 4th July we headed just after 7H15, out towards the West Rand via the N3 South then via the M2 onto Main Reef road. We stopped for coffee and a small bite to eat at McDonalds just after 08H00.

Soon after that we got the open road, and did a quick stop doing a geocache at the Tarlton Race track, and then headed to Magaliesburg, and then using the R509 towards Derby and Koster.

The people in Koster are so behind the times they still have the old Transvaal numberplate on their trailers as can be seen in the photo :)

After Koster we headed south on the D826 and R30 into Ventersburg, where we stopped for a "Welcome to" photo, and town photo, a geocache, petrol, and lunch. We had lunch at Barcelos. The chicken burgers were very tasty but a bit small. Chips were outstanding.

Then we headed west ward on the N14, and got some photos in Coligny and soon afterwards at Gerdau. On the road between Gardau and Ottosdal we picked up another 4 geocaches where the last one was at the church where there were Voortrekker tracks in the cement at the memorial.

Then it was the last 50 odd km towards Delareyville where we would stay for the night.

After finding a place to stay, I went to the shops for milk and rusks for our coffee and tea. After putting the action camera, intercom and cell phones on charge we we went for dinner at the restaurant the B&B was part of. Dinner was very good, and reasonably priced. Dinner and the night's stay came to just over R700.00.

The B&B looked very good, but the shower did not have a soap dish, and the bed felt very cheap. There was also some hooting at 2AM in the morning close by. All in all we give this place a 6 out of 10.

ISEE-3 / ICE - The little satellite that could ... return to earth.

Amazing what they got right in 1986. But before I get to the amazing part some history background  .... with links to the original source.

1978

A state of the art satellite, called the International Sun/Earth Explorer 3 was launched on the 12^th of August the 1978. The satellite was to explore the interaction between the earth’s magnetic field and the solar wind. It completed this mission in 1982. (link)

1982

It was then renamed International Cometary Explorer (or ICE) and sent on a new mission. After a thrusters burn on the 1^st of September 1982 and making a series of lunar orbits for the next 15 months the little space craft, using the gravity or the moon and earth, was set in a heliocentric orbit ahead of earth. (This is a orbit around the centre of our solar system ... thus around our sun).

To me this is somewhat amazing .... and the real amazing part is still yet to come...

They ... and it sounds like Bob Farquhur was the brains behind it ... did all these manoeuvres over the 15 month period so that the satellite got to its orbit with the least amount of fuel spent.

(link)

The previous 15 months of manoeuvres allowed the space craft, in its heliocentric orbit, to fly through the plasma tail of Comet Giacobini-Zinner  on 11 September 1985

(link)

1986

In March of 1986 it also passed through the tail of Halley’s comet.

(link)

1991

In 1991 NASA approved what was to be this satellites last mission. It was to investigate the coronal mass ejections, and cosmic rays.

(link)

1997

On the 5^th of May 1997 NASA ended the ICE mission, and ordered the probe to be shut down except for the carrier signal left operating.

As of January 1990, ICE was in a 355 day heliocentric orbit around the sun and more or less in the same orbit path as earth. This means in time to come it would catch up to earth again.

 (link)

1999

NASA made brief contact with ICE to verify its carrier signal. 12 of its 13 experiment sensors were still in working order. NASA then decommissioned the equipment to communicate with the satellite.

April 2014

Almost 15 year after the last contact the satellite is nearing earth once more and a group of engineers are making a great effort to recapture the satellite into an halo orbit near earth.

When the guys in 1986 (and Bob Farquhur specifically) set the course for this satellite they had planned for it to come back to earth ... and hoped that it can be recaptured.

This little 390 kg satellite has travelled over 24 billion kilometres, revolved around the sun 27 times, and soon will be close enough to the earth to be recaptured. 

From: media.npr.org

The amazing part is .... To recapture the satellite into its halo orbit we need the moon. This means that the engineers in 1986 had to make sure that the moon would be in the right place at the right time sometime in August 2014. And after its 24 billion km of travel, around the sun 27 times, it is out by a mere 30 000 km. How is that for planning decades in advance! This also means that the orbit they chose for ICE so many years ago had to co-inside with where the moon would be. Quoting verbatim from here:

Consider this, the spacecraft has completed almost 27 orbits of the sun since the last trajectory maneuver. That is 24.87 billion kilometers. They are off course by less than 30,000 km. I can't even come up with an analogy to how darn good that is!! That is almost 1 part in ten million accuracy! We need to confirm this with a DSN ranging, but if this holds, the fuel needed to accomplish the trajectory change is only about 5.8 meters/sec, or less than 10% of what we thought last week!

We truly stand on the shoulders of steely eyed missile men giants..

The Reboot Project

Some guys who were part of the Lunar Orbiter Image Recovery Project (LOIRP) (link - http://www.moonviews.com/mcmoons-aka-building-596/ ) project have taken on the challenge with NASA’s blessing to get the satellite back into working order and get us civilians access to the data. To get this right they need to fire the thrusters in the next week (more or less before 10 June) to make the small course correction so it can swing around the moon ... possibly missing the moon service by less than 50 km, can come back into a stable halo orbit near earth.

I will be following the Reboot project with fascination.

All the details and technical info is over at spacecollege.org  (http://spacecollege.org)

Bob Farquhur
Here there is an article about Bob Farquhur ... and his genius mind at working out these orbits... again quoting verbatim:
Farquhar is now 81 years old. He's been called the master of getting to places. His genius is inventing esoteric flight plans that take advantage of gravitational boosts from the moon and close flybys of Earth to send space probes zipping around the solar system in surprising ways. 
He's so adept at calculating these exotic trajectories that often, just for fun, he's made sure that key mission events fall on birthdays or anniversaries.
The exploits of ISEE-3 were the first ones to really show off what Farquhar could do. "Certainly all the people in the space business know that that's my spacecraft. It's very personal with me," he says.

Raspberry Pi East Rand Jam Session #2

The next Raspberry pi session was set for Sunday the 18th of May.

We started a bit late but still got a few things done.
We basically completed two tasks.

(Task 1 - USB video camera)

I had read that the Sony Eye toy camera works on the Raspberry Pi, so I found the kids PS2 and removed the dusty old usb camera. Search a few sources online and found out it was quit simple to get a compatible usb camera to work with the Raspberry Pi.

Basically I just had to do a :

sudo apt-get install motion

Then go and edit the config file in /etc/motion/motion.conf

At the time I did not make a backup of the motion.conf file and it was a pain to undo the mess I made in the file. So from now on I will always make a backup of config files before I play with them.

I used this web site for most of the motion stuff we did:
http://pingbin.com/2012/12/raspberry-pi-web-cam-server-motion

As it turns out this eyetoy no longer works with the update Raspbeian I am running.
Got hold of my wife's usb camera and tried that no luck either.
I then dug out an old usb camera from a cardboard box in the back of my cupboard and would you believe it it worked!

Doing a motion -n I captured a few frames and they were dropped in the /tmp/motion directory (after I created it).

We did the sane to Clive's Pi, and it worked there as well.

Task 1 completed.

As a next task I plan is to focus the usb camera at my pond outside the window and tweet a picture every hour or if it is light.

 (Task 2 - Reading a light source using a LDR)

Quite some time ago I got a blue case with a lot of electronic components in a small draw from someone at work. The week before I went through the draw and and came across a LDR
 Also since then I went to this robotics web site and bought a bunch of small components for a few Rand. Not to much.

I waweb page that showed how to use the LDR with another resistor and a capacitor to read in a time delay value. I found this ingenious!
s wondering how I could use this LDR on the pi to read how light or dark it was. Doing some searching I came across this

I built the circuit and entered the program and ran it. I got very high values. I think this is due to the LDR being quite big, and the capacitor being 10 uf rather than 1 uf.

When Clive arrived we went through the box of goodies I bought the the robotics store and there were some tiny little LDRs. We rebuilt the circuit using it and got much smaller values from the running program.

Conclusion

All in all we only spent about 3 hours playing with the raspberry pis, but again learnt a little bit.

Next Jam session

I read this article on /. (slashdot) about Anonymous where they created AirChat which is a set of software components that one can use when all internet traffic comes to a stand still in war torn countries and of course other scenarios.

This got me thinking if it is possible with my limited knowledge of Linux to build a chat application between two RPis using FM transmitters. The idea is to use a soundmodem  to transmit data via from the PI be received by a plain old FM radio on the other side. Get the sound back into the Pi (perhaps via a cheap usb soundcard) and decode the message.
I think it would be cool as a RPi project to get two RPIs to chat to one another over some distance without using current infrastructure such as WiFi, or LAN.

I'll toy with the idea and see if I can hack something together.

I wonder if an advanced Linux hacker / programmer could get a LAN Card driver to work using Soundmodem and FM radios.