Sunday, April 12, 2026
AI Me, The rise of AI in content creation in 2026
Thursday, April 25, 2024
Damascus Steel Kitchen Knives Part 1-3
Forging the steel - Day 1
For my 60th birthday, my wife Louise bought me a course at the Tharwa Valley Forge in Canberra for a 3 day Damascus kitchen knife making course to make 2 knives. This is a description of the process.
Our Damascus steel was made by using alternating layers of 1075 and 15N20 steel with 9 layers, with the thicker 1075 on the outside. The steel blanks are ground to a clean and shiny surface using the belt grinders before being cleaned with acetone, stacked and welded together to make our first billet.
When the steel has reached temperature, it is placed lengthways in the press to squash the billet evenly at 1500 PSI to weld the billet together. This process is done 3 times before proceeding to drawing out the billet.
Drawing the billet is achieved by heating the billet and using the press to depress the billet every 5cm along the billet, reducing the height and spacing the billet. This is done another 2 times before turning the billet on its side and pressing the side and top and bottom, drawing the billet out to a long square shape approx 500 mm long.
Once this is done, and the drawn out billet has cooled, it can be ground using a hand grinder taking the surface back to bare steel on both sides. The billet is then cut in 3 even pieces using a drop grinder.
The three pieces are then put to the belt sanders again to remove contaminants and cleaned with acetone again before being welded again.
The process repeats again, dipping the new billet in kerosene and into the forge, heating, welding the billet 3 times before drawing the billet out again, then grinding and cutting the billet into 3 more pieces.
The process repeats a third time before drawing the billet out again. This time the billet is drawn flatter and wider to accommodate the proposed knife shape using the power hammer, roller and other tools.
The result is a Damascus steel billet of 243 layers.
Ric Noble
19 April 2024
https://youtu.be/DGatFK3pxeQ?si=4Ge0lNTKsqKmnvVT
Tharwa Valley Forge
https://www.tharwavalleyforge.com/
Damascus Steel Kitchen Knives Part 2-3
Shaping the Knife - Day 2
Shaping a knife generally starts with shaping the tang of the knife. The tang is the narrow part of a knife that fits into the handle. We used a smaller forge for this process and only heated the area of our billet that we needed to manipulate.
Fortunately we had an induction forge to provide instant heat which uses electricity through looped steel tubing to heat our billets quickly.
Shaping occurs using the forge and hammer, drawing out the tang first, which is the narrow section of the knife for the handle. The billet needs constant manipulation, developing the ricasso or heel of the knife and then drawing out the blade itself. This is achieved by constant heating and manipulating, although there is usually about 8 or so minutes between adjustments.
Once the tang, ricasso and blade shape is confirmed, the knife can be cut to size, noting a centimetre short given the blade will be drawn out further again later.
At this time, we repeated this process as we were making a second knife.
We ended up with 2 knife blank shapes. We then took these knives to the belt sander to shape our knives to a true shape and sand back to a shiny steel finish.
We now had our true knife shape and took them back into the forge to 1200c and then quenched in canola oil for the heat treatment.
After quenching, the knives are baked in an oven for 2 hours to temper the steel. After baking, the knives are sanded back to bare steel on the belt sanders and a step cut into the tang in order to fit the handle.
Ric Noble
20 April 2024
https://youtu.be/RTBK9Uf9KJY?si=JAD0w1sOMr9gnNvl
Tharwa Valley Forge
https://www.tharwavalleyforge.com/
Damascus Steel Kitchen Knives Part 3-3
Finishing the Knife - Day 3
Day three starts with a heavy sanding task in order to sand lengthways on the blade in order to sand out the band sanding marks left by the belt sander along the short profile of the knife. This sanding task is done by hand sanding with 120 grade sandpaper, moving to 180 and finishing off with 320 grade resulting in a clear metallic surface with no obvious scratch marks in either direction.
Etching
The next step is etching which brings out the unique pattern effect of the damascus steel. Once the blade is cleaned and free of any impurities such as fingerprints and grinding dust, the blade is lowered into a mild acid solution and allowed to cure for five minute periods, removing and gently wiped with steel wool between immersions. Even after the first immersion the amazing damascus pattern is evident.
After three acid immersions, the blade is run under cold water for about 3 minutes and sprayed with a substance to neutralise the etching process. Once dried, the blade is lightly coated in wax.
Handel construction
Our kitchen knives had a handle length of 120mm with a bolster (the part of the handle closest to the blade) being 25mm and the handle being 95mm. We were provided with a choice of wood and some spacers to go between the bolster and handle to add a stylized break between the two. I chose two different pieces of wood, rosewood and teak. The wood is cut to the approximate dimensions mentioned above although larger before the handles are tapered down. I chose to interpose the bolsters of my knives so I had a light bolster and dark handle on one knife and vice versa on the other.
Once the handles and bolsters are cut, the handles are drilled to the length of the tang and the bolters are precision cut to allow for the stepped-in cut in the tang. The spacers are punched to allow them to be threaded onto the tang. My spacers included a brass plate with a black spacer on either side creating a stylised emphasis on the brass.
Once all the handle pieces are able to fit comfortably, the handle is glued in place. A two part epoxy glue is used and the handle held in place for 5 minutes while the glue sets. Any excess glue can be removed from the ricasso and tang before the glue sets hard. The knives are set aside to set hard over a longer lunch.
Once all glue is set, the handles are put to the belt grinders again to square the handle. A centre line is drawn on the handle in line with the knife's tang in order to grind the sides of the handle evenly and then rotated 90 degrees in order to evenly grind the side of the handle.
Once the square handle is formed, the four corners are ground back to make an octagon shaped handle and shaped base of the handle. Additionally, hand sanding ensures a final 320 grade sand of the handle before oiling.
The final finish is a blade sharpen and polish. Additionally we were able to add a laser message on to the blade as a name word or short message. I am so happy with my two knives I left the forge with. While I had assistance from the course instructors, I truly feel I have created these knives and have had a meaningful learning experience.
Ric Noble
21 April 2024
https://youtu.be/RTBK9Uf9KJY?si=JAD0w1sOMr9gnNvlThursday, March 24, 2022
I got hit by the viral bus
I generally consider myself a reasonably fit and healthy person although a bit overweight. I have never been in hospital in my life and don’t take any regular medication and rarely take a sick day or visit a doctor. I have also never had any heart trouble or family history of heart trouble. So it came as an utter shock and surprise when I ended up in hospital for 10 days with viral induced Myopericarditis.
To take a step back, I went sailing as I usually do on a Sunday. When you include getting the boat from home onto the trailer, off load at the club, rig the boat, then out on the water sailing for an hour and a half, then un-rig back on the trailer back home and into the shead, it is quite a physical afternoon. That Sunday was no different and Monday brought the usual aches and pains. However, I was feeling fine on Tuesday.
Wednesday is another sailing day with a twilight sail from 6pm. However I was feeling a bit unwell with different aches and pains, more like the flu although I had no other symptoms. As I had decided not to go sailing that afternoon, I decided to go to a family dinner at a Chinese Restaurant. As a precaution I had a RAT test with a negative result.
I wasn’t feeling hungry but did eat some food. I ended up developing breathing difficulty which resulted in an asthma attack. This is not the first time I have had an Asthma attack as a result of eating in asian restaurants cooking with fried oil. As a result I left the restaurant, sat in the car and had the ventolin inhaler. Louise took me home after that as I started going downhill very quickly, I assumed it was the asthma.
The following day, Thursday, I was still feeling very unwell and couldn’t even get out of bed. The asthma had subsided but I was still having troubles breathing and I was starting to have chest pain, although mild. I had to send an email and it was all I could manage for the whole day.
On Friday I awoke with much the same symptoms but increasing chest pain. Again, as a precaution I had a RAT test with a negative result. Loise took me to the walk in clinic, which is staffed by nurses. Once you describe symptoms that include chest pain, you are fast tracked through to a nurse immediately. The nurse took the usual diagnostics which revealed a high temperature and decided to call an ambulance to the emergency department at Calvary Hospital as a precaution. The ambulance team were onsite quickly and concurred with the nurses assessment and I was at the ED within half an hour.
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| Ric with Jugular dreads - Cannula |
Myopericarditis is described as an inflammatory disease of the heart muscle, whilst pericarditis is an inflammatory disease of the lining of the heart muscle. My diagnosis was described to me by the doctor in the following way; The heart sits in a protective sack with a minimal amount of fluid around it. In my case a virus is suspected to have infected the fluid in the sac and increased in volume which constricts the heart.
As mentioned the heart event was triggered by an unknown virus and virus in this day and age means quarantine and isolation. After my diagnosis I was moved into an isolation ward with a double airlocked door. All nurses, doctors and Louise had to don full PPE before entering. I did find this a bit disconcerting, however I was too busy with sleeping and the fever to think too much about it at the time.
The fever lasted about 5 days and I had a lot of fluid going in through the cannula and blood going out for samples. I had daily covid tests all with negative results. I also had doctors from the infectious diseases unit come and question me. As well, blood samples were taken for tuberculosis tests, a bit extreme but I assume they were crossing their T’s and dotting I’s. After the fever wore off I was declared not infectious.
I had further echo heart ultrasounds with results showing further fluid build up. I was kept in the iso ward for a further 3 days while efforts were made to reduce the fluid around the heart. On the Friday night I was transferred into a general ward with 4 people per room, a bit of a shock after the single person iso ward. Hard to sleep with a chainsaw snoorer, Another talking in their sleep and a heavy breather, not to mention the people screaming and yelling down the hall.
I spent the weekend in the general ward and had a further echo heart ultrasound on Monday morning with results showing reduced fluid which was great news as the alternative was draining the fluid in a rather invasive procedure. I was cleared to be released on Monday afternoon.
At the time of writing, I am still at home reciprocating for the rest of the week. However I am thankful and impressed by the medical system from the Walk in clinic staff, ambulance service and the doctors and nurses at Calvary Hospital. Hopefully this issue is now resolved. I am still due for further consultations with the doctors in coming weeks for follow up treatment.
Wednesday, June 30, 2021
Flyer Beware
A bit of a long rant, but explains the perils of taking holidays in the age of Covid.
In our world of the Covid normal, eighteen months on, it’s not unfair to expect people to want to go on holidays. That is what my wife and I and our usual travel companions, my wife’s brother and his wife, did recently. We are all from Canberra and aged from mid fifties to early seventies and have all had our first covid shot of AstraZeneca.
We took advantage of the federal government's discounted airfare program in order to support tourism within Australia. However there were no guarantees if flights were cancelled. As a result we chose to travel to ‘safe’ destinations, rather than the east coast states QLD, NSW and VIC all of which have had outbreaks or hotspots in the last six months, including the ACT. We chose to travel to Adelaide and Alice Springs, seems safe enough right? A few wineries, explore Adelaide and the surrounding areas for five days. Then on to Alice Springs to see Uluru, the Olga’s and the West Macdonald ranges. The Beanie festival was also on over the weekend before we left. We volunteered at the festival which is always a great way to get involved in an event. We ended up spending a week in Alice.
Before we left Canberra on our trip we researched as best we could about Covid requirements for entering the areas mentioned. The South Australia Covid web site information appeared to be three or four months out of date mentioning ‘from March...’
In any case we followed the instructions and filled in the Cross Border Travel Registration form. As it turned out, these forms were irreverent on arrival and a QR code registration process had taken its place. All passengers were required to show evidence they had completed the registration. Well no big deal, the process to get out of the airport in Adelaide took about half an hour.
The process to obtain information to enter the Northern Territory was easy to find and up to date on the website. We filled in the NT border entry form and a copy was emailed to us to produce on arrival. The process to cross the border in Alice Springs however was chaotic and unnecessarily time consuming, considering we had already provided all the information online. After producing our border entry form on our phone, we were asked all the questions that were on the form, and it appeared that they were manually entering this information on their computers. This process needed to be completed for every passenger on the plane and it took about two hours to get through after a two hour flight.
During our time away we closely followed news online and on TV following the developments of the Sydney outbreak and then the QLD FIFO worker from Northern Territory. We were due to fly out of Alice on Monday 28 June after the Beanie festival and spend a couple of days in Adelaide before returning to Canberra. We heard on Saturday that some areas in Darwin and the mine area were being locked down, which was concerning but Alice Springs was not mentioned as a hotspot. On Sunday night we discovered that South Australia had closed its border to a number of states including the Northern Territory, the wheels had fallen off.
After a sleepless night we contacted Virgin Airlines on Monday morning at about 8am Alice Springs time. We explained that as South Australia had closed its border to us we needed to arrange an alternative to get home to Canberra. A helpful call centre member told us as our flight to Adelaide was still currently departing at 2:55 that afternoon, we would need to pay for onward flights. After transiting in Adelaide a flight onwards to Melbourne was arranged and then transiting again onto Canberra arriving after 10pm that night. We agreed and paid the additional fares, forfeiting our Adelaide Canberra flight with Qantas on Wednesday. An expensive but unavoidable change to our plans.
On arrival at Alice Springs Airport to check for our flight to Adelaide and collect our onward boarding passes, we were informed that our flight from Adelaide to Melbourne had been cancelled. The check in agent explained that it was due to Covid and as a result no compensation or accommodation would be provided and the next available flight was in two days time. Needless to say we were not impressed by the decision by Virgin to blame any inability for them to meet their 80% capacity rate (or whatever is for a flight to be profitable). I argue the point that as the flight was from Adelaide TO Melbourne, the flight was not cancelled because of Covid, but because of profitability and Virgin is using the ‘Covid’ excuse to get away with not compensating passengers.
In any case we requested to be forwarded elsewhere. Virgin eventually advised that they could fly us from Adelaide to Brisbane instead but no onward flight to Canberra would be available until the following day. We would not be charged any additional money but would have to get some accommodation in Brisbane which was preferable to two nights in Alice Springs. We again reluctantly agreed to this unavoidable change to our plans. Well then onwards to Adelaide, I had checked the SA website overnight as I had plenty of spare time and found the website unchanged and in any case we were not entering SA but only transiting and we had the QR app still installed on our phones.
On arrival in Adelaide, as we were on a flight from the NT the Police, Health and SES were waiting for us and herded us to a cordoned off area to process us. We explained we were transiting, they explained we still needed to be processed, had we filled in a border pass? We explained that we didn’t think we needed to as we were transiting. This seemed to put the health staff into a quandary (hadn't thought of this scenario?). Half the plane was transiting to somewhere else as a result of the border closure. After checking in with the QR app, the health officials then proceeded to fill in our details on paper forms (for the Police) then entered everything into their computers, including where we had been, for how long, where we were going, flight details and more. Needless to say this process took an age. Then we were handed over to the Police who took us to a makeshift quarantine area to wait for our onward flight. This next part seems bizarre, we were then headed back through the front of the airport through the security area, with all the other non quarantine passengers and then on to the gate to board the flight. Interesting to watch this ‘make it up as you go along’ approach to decision making, what could possibly go wrong!
The next unbelievable situation occurred on our arrival at Brisbane airport. We filled out our Queensland Travel Declaration forms and prepared for our next brush with bureaucracy. As we made our way from the aircraft I sighed deeply, wondering how long this would take or if we would have to overnight in a transit lounge or worse. To our astonishment not a single official was on hand to check if we even had a valid Travel Declaration. It's not surprising then to see how people may exploit this lack of security. I’m sure that there was at least one FIFO worker from Darwin who travelled from Alice and ended up in Brisbane.
The rest of the journey was fairly uneventful. We stayed at the Brisbane Airport Ibis Hotel overnight at a cost of a biot under $200 per room, beggars can’t be choosers. The flight back to Canberra went ahead thankfully, but would have happily spent a few days in Brisbane if I had to. Again no one to check arrivals into Canberra, but not really surprising. The ACT website only advises to fill in a travel declaration if you have visited a hot spot.
All in all our trip was not disrupted too much, we only lost a few days back in Adelaide. The monetary loss was not insignificant though. The losers here are the local businesses, our cancelled hotel, the restaurants and possibly a day trip to the Clare valley. There was no need to close SA to the entire NT. Apart from that, this is a real problem now for both SA and NT as people are unlikely now to trust even the formally safe states or be willing to pay for airfares when airlines are taking advantage of the Covid crisis.
At the time of writing I have just learnt that Alice Springs has just been locked down for 72 hours, a very lucky escape for us.
Ric Noble 30 June 2021
Tuesday, September 8, 2009
Facebook Security

I recently received an email from a friend asking how safe Face Book is and it inspired me to write this response as I have invited dozens of people to use it. Facebook is becoming more and more popular all the time but I don't think that its security is very safe. I am always careful what I put on FB, however I always apply that to anything that happens online now days, email, blogs, Youtube and even online games.
While we are guarded by our password, there are a lot of 3rd party developers that have access to your data on FB. For instance all those games that people like to play...Farmville, Yoville, Mafia Wars, Pirates and many more. There is also an ever growing list of new applications, the latest of which is 'Deaths Time', where I'm guessing you feed in a lot of information about yourself and it publishes an amusing death for you. Plus there are Birth date gathering applications such as FB Birthday cards, Year Book, Dead Rock Stars and a few others that are gathering names and data. I don’t want to sound alarmist but this seems like a recipe for Identify theft, if the information were to get into the wrong hands, but whose hands is that data in?
Growing gifts, hug and cuddle requests etc. Are fairly innocent, but you still have to grant access to your data. I think it’s only stuff like name, age and other information you put in about yourself, so they can target adds to your demographic. When you join these services, you have to tick a box saying that you grant the developer access to your data. This is a sample of what you are allowing...
“Allowing Birthday Cards access will let it access your Profile information, photos, your friends' info and other content that it requires to work.”
Joining Networks or Groups also grants people you don't know access to your info. I read an Article about a FB photo appearing in a newspaper. The woman was a member of the group 'Australia' or something similar and half the FB community in Australia is in the same group (currently 3.2 million people, the odd journalist among them I suspect!)
There are many privacy settings in FB and by default, they are set to give information to 'Networks and Friends'. The further you dig into this area the more paranoid you become, go to: Settings - Privacy Settings - Applications - Settings, you will discover more defaults you would rather not have known about. Also have a look at the applications that are installed on your Facebook, click the applications button at the bottom left then click Edit application to see the number of applications that have access to your data, I’m sure there are a few there that you didn’t allow, or were there by ‘default’.
Don’t get me wrong I think FB and other social networking sites are an important part of our lives now for communication and entertainment. They are starting to take over from email in a lot of cases. However having said all that most of my settings are on default, but I am careful about what I do and say on FB and I don’t let third party programs have access. So to all my friends, don’t be offended if I don’t poke you back, return the cuddle, share my birthday, collect your unwanted sheep or help you wipe out a crime family. So surf safe and be aware.











