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Saws date back at least to the early Egyptians, who used copper hand saws were about half a meter long and worked much like today's knives to saw their way through soft materials.
The Greeks and Romans improved the basic design of the saw by introducing wooden frames for supporting the blade and setting the saw teeth alternately, in order to get a better more accurate and easier cut.
The big breakthrough for the humble hand tool came after 1650, when the process of rolling wide strip steel was developed in Sheffield and Holland. Wider bladed saws made it possible to do away with the wooden frame, and the steel hand saw, as we know it, was born.
English saw makers developed the wider type handle still in use today, while continental makers produced a pistol-shaped handle. The fact that a saw can "sing" was discovered both in Europe and in the U.S. at about the same time.
As furniture and joinery work became finer and more detailed, specialist saws were developed to help craftsmen achieve the desired effects. Sash, tenon, keyhole and dovetail saws were developed with thinner blades, finer teeth and steel or brass strengthening bars began to appear, together with new types of open handles for ease of use.
Today's hand saws use double-sharp steel edges to cut through wood, metal and just about anything else you can imagine. The diversity of specialty saws is staggering. Saws do everything from prune a hedge to hacking through drywall. Take a moment to appreciate the diversity and the handiness of the humble hand tool, the saw.
These are my first markers. I don't have many either because when you're in college and have no $$, buying markers is expensive! I bought these in 2003 and I loved them. They work really well but they don't make them anymore. I think the newer ones are not the same quality. At the time I loved these more than copics. But since then I've had to convert to copics because copics are more readily available.
I still use these time to time but they are drying out now. :(
This spark plug gapping tool is about 35 years old and it works quite easily. The resulting gap is perfectly parallel between the electrodes. A spark plug can be gapped in just a couple seconds.
In use, the spark plug is drawn upwards with the "feeler gauge" set between the electrodes. The upward pressure against the "anvil" adjusts the softer side (ground) electrode to assure a perfect gap.
I switched laptop bags the other day and thought it was a good opportunity to update my old "what's in my bag" picture.
Not Pictured: Same laptop cooling stand/pad from the old picture, macbook power brick, camera I used to take this picture.
The Tool is a sixty-inch triple chrome-plated adjustable pipe wrench, forged by the Ridge Tool Company of Elyria, OH, USA. It is the only known fully chromed pipe wrench of its type in the world, and is the mascot of the University of Waterloo Engineering Society. Its history goes back to the early days of the University.
In the late 1960s, the Engineering Society had no official mascot. Being barely 10 year old, the Society decided to begin the process of selecting and acquiring an object that would become the Society’s official mascot and icon – something to represent the immense pride and spirit that Waterloo Engineering had.
Several ideas were discussed, but the two most popular ideas for a mascot were a pipe wrench (a symbol of the “Plummer and Proud of It” attitude championed by Ken Loach, Chemical ’71), and a sword. Through a public vote in meetings of both Society “A” and Society “B”, it was determined that the wrench would be the mascot, and it would be big.
Jim Pike, Society “A” President at the time, then began the search for the new mascot, and while on a co-op work term, found a suitable choice: the Ridge Tool Company’s straight pipe wrench model No. 60. However, at a cost of $350, it was unattainable for the young Engineering Society.
Jim decided to send a letter to the Ridge Tool Company and explain what they wanted to do, what the wrench would mean to the society, and if they would donate one. The company’s response was an overwhelming “yes” with only two conditions: that it would be known as “The Ridgid Tool”, and that it would retain its original orange colours out of respect for the Ridge Tool Company.
The Tool was chromed within a few hours of Pike picking it up from the supplier in the summer of 1968, although he admits that he “should have had a Chemical Engineer along to explain what happens to orange paint in a chrome dip.” As for the name “The Ridgid Tool”, he won’t say what exactly happened, except that it did get lots of mileage and notoriety before the official name change.
With The Tool coming to the University of Waterloo, it was determined that a group of dedicated students was needed to protect it and thus, the Action Committee was formed. It was their duty to be the official guardians of the Tool in public and in private. Over time, these students came to be known as Tool Bearers, and the Action Committee was dissolved. There are no publicly known details about the Tool Bearers today, except that whenever the Tool is around, they are as well, silently guarding it in their black and gold uniform.
We went round to my nans on Sunday to get the veg planted. First job was to rake the veg plot. Within second the end was off the rake. This wouldn't be so amusing if it wasn't for the fact that every single time I go to my nans I break her garden tools. I'm begining to think she puts all these duff tools out and about, already bust, so that I break them and buy her brand new ones. What a cunning plan.
Phil.
He was tough as a crowbar, he was quick as a chisel,
Fair as a plane, Lord, and true as a level,
He was straight as a chalk line and right as a rule,
He was square with the world,
He took good care of his tools.
This was taken during the first tour my house, before I'd decided to buy it. The previous man of the house was an accomplished carpenter and builder. He'd died years ago, but his tools still waited, untouched, by his workbench.
Simple Image Tools Edge Detection Testing
These photos are to test how well Simple Image Tools detects and renders edges. There should be crisp edges with a smooth artifact free transition to the out of focus areas of the image.
All of these photos where shot outside in the late afternoon. The white balance in LR was set to Daylight, and other than basic exposure corrections, these are as they came out of the raw processor.
Simple Image Tools took the raw CR2 file and demosiaced and converted it to a scene referred 32 bit floating point linear light TIFF file.
The colorspace used was the Identity Color Space (from ninedegreesbelow.com), which is the biggest color space I've ever seen.
Upon import into LR, LR converted it to it's internal color space.
Model: Chyna. Tools: Mamiya 645, Sekor C 80mm F2.8, Portra 800. Process and scan by Exposure Film Lab. I use Flickr as my cloud storage, so I upload everything here: I have a decade worth of photos, check out my albums! Sign up to my mailing list to stay up to date with me, or find me on Instagram and Facebook. These images are protected by copyright, please do not use them for any commercial or non-commercial purposes without permission. For enquiries, contact me on social media.
High-tunnel greenhouses are seen beyond the Spanish moss that drapes the trees at the U.S. Department of Agriculture (USDA) Agricultural Research Service (ARS) U.S. Vegetable Laboratory in Charleston, South Carolina, on January 28, 2021.
ARS Research Plant Pathologist-Nematologist William Rutter, Ph.D., works to develop tools to manage and mitigate the damage caused by the Meloidogyne enterolobii (the guava root-knot nematode), and other root-knot nematode species.
Nematodes are small microscopic roundworms in the soil.
Meloidogyne enterolobii is an invasive species in the United States southeastern region and causes significant damage to a wide variety of crops worldwide.
These specific nematodes only appeared in the United States within the last 20 years and they've slowly been spreading across the southeastern states causing damage in sweet potato as well as several other crops.
This research will provide resources to develop germplasm that will help breeders develop new crop varieties that are resistant to the nematode as well as management practices that will help farmers directly manage the nematode and stop its spread in the field.
Root-knot nematodes in general and particularly Meloidogyne enterolobii can infect the majority of cultivated plants in the U.S. They're currently causing a lot of damage in sweet potato in the Carolinas, but they also infect other vegetable crops such as pepper, cucumber, watermelon, as well as soybean and cotton. Root-knot nematodes cause billions of dollars of damage each year for the U.S. and farmers globally.
USDA Photo by Lance Cheung.
Related information includes:
Controlling Guava Root-Knot Nematode video
tellus.ars.usda.gov/stories/articles/controlling-guava-root-knot-nematode/
Meloidogyne enterolobii Found Infecting Root-Knot Nematode Resistant Sweetpotato in South Carolina, the United States at apsjournals.apsnet.org/doi/10.1094/PDIS-08-18-1388-PDN
A Multi-state Effort to Contain and Manage the Invasive Guava Root Knot Nematode (GRKN) in Vegetable Crops.
ars.usda.gov/research/project/?accnNo=437518
The handmade alaia shaping tools. The first tool is made out of two pieces of 1/2 inch cedar, glued together. It has a convex shape. This tool helps make the concave section of the bottom. The second tool is flexible made out of pressboard. This tools helps even out the curved edges. The third tool is rigid and helps even out the straight edges. All tools have 100 grit sand paper glued on to the top with wood glue. The concave tool does not have it's sand paper glued on in this picture.
A collection of Ken Meltsner's "old tech" tools... 50+ years old and not obsolete, they still work fine...