2.5 mm


Crocheted wire necklace. 30-gauge bare copper wire and a string of random gemstone chips. I used a 2.5 mm crochet hook for this because I got tired of trying to figure out what size the book meant- I originally saw something similar to this using fluorite chips only in a book on jewelry produced through crocheting and Viking knit, but it was unclear whether ‘2.5 crochet hook’ was meant as 2.5mm, size 2.5 American, or size 2.5 UK. 

Jumping Spider Crochet Pattern

Hi!  I got a few asks wondering about a pattern for my jumping spider!  I made up the pattern myself, but it’s fairly simple and I’m kinda interested to share with others!  I used a 2.5 mm crochet hook and Red Heart Yarn in “Day Glow”, but I’m sure with a project like this people can be very creative with their choices!  If anyone uses this pattern, please link back to my page, don’t sell things you’ve made with this pattern, and also send me a picture!  I’d love to see what people do!


  • 6 sc in a magic circle
  • inc 6x to make 12 stitches
  • 1 sc, inc 6x to make 18 stitches
  • 2 sc, inc 6x to make 24 stitches
  • 3 sc, inc 6x to make 30 stitches
  • 4 sc inc 6x to make 36 stitches
  • 6 rows of 36 stitches
  • 4 sc, dec 6x to make 30 stitches
  • 3 sc, dec 6x to make 24 stitches
  • add eyes - I used 12mm, 9mm, and 6mm - I looked at a lot of pictures online to decide what the eye arrangements should be - jumping spiders have a very distinctive arrangement, but if you want to go for another style feel free!
  • 2 sc, dec 6x to make 18 stitches
  • 1 sc, dec 6x to make 12 stitches
  • 6 dec to make 6 stitches
  • close off w more decreases
  • add pedipalps/chelicerae (aka those little face pincer things): 6 sc in a magic circle, 3 rows of 6, and sew on - this is a place where I went fairly ambiguous with the actual spider parts, I think it could be improved upon!


  • 6 sc in a magic circle
  • inc 6x to make 12 stitches
  • do another row of 12 stitches (to elongate the abdomen slightly)
  • 1 sc, inc 6x to make 18 stitches
  • 2 sc, inc 6x to make 24 stitches
  • 3 sc, inc 6x to make 30 stitches
  • 8 rows of 30 stitches
  • 3 sc, dec 6x to make 24 stitches
  • 2 sc, dec 6x to make 18 stitches
  • 1 sc, dec 6x to make 12 stitches
  • 6 dec to make 6 stitches
  • 2 rows of 6 stitches (to make the waist)
  • attach to head

Legs (you know what you have to do! make 8 of them!!):

  • 6 sc in a magic circle
  • ~20 rows of 6 (basically make them as long as you want!)

I had to taper the legs off at the end by doing some decreases, so they would all fit under the head as the cephalothorax - Spiders have such interesting anatomy!  

I then sewed on all the legs, and used a combination of stitching with yarn (to make the bend in the middle of the leg) and a hot glue gun (keeping the legs close to the head) to pose the legs.  (She looks like a dead spider here, don’t fret, little cutie!)

And that’s it!  I guess if someone tries this and comes up with questions, feel free to ask me!  I wrote this more for people who are familiar with crocheting amigurumis, but there are lots of resources out there for beginners!

I’m pretty pleased with how this spider turned out - I think it’s a good combination of real spider anatomy and “cute-ification” - to be fair though, jumping spiders are just so cute in general!  I hope this results in more cute crocheted spiders in the world!




Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough, Great Fissure eruption, Tolbachik volcano, Kamchatka Oblast’, Far-Eastern Region, Russia

Field of View: 2.5 mm

Collection and photo Stephan Wolfsried

Calciojohillerite is the Ca-analogue of johillerite. Chemically similar to berzeliite; also somewhat resembling anatolyite and currierite.

Herb of the Week-Spearmint

Common names

Garden Mint
Menthol Mint
Sage Of Bethlehem
Silver Mint

Spearmint (botanic name Mentha spicata) belongs to the mint family (Lamiaceae) and is indigenous to most of the European regions as well as places in southwest Asia. The species derives its name from the resemblance of the tips of its leaves to pointed lances or spears. However, as spearmint has been extensively cultivated since ancient ages, the precise natural variety of this species is yet to be ascertained by botanists. Spearmint is an herb-like rhizomatous (a flat, subversive stem that often sends out roots and shoots from its nodes) plant that thrives best in damp soil conditions. This is a perennial herb that grows up to a height of 30 to 100 cm. The spearmint plant is extremely invasive by nature and was first noticed in the Great Lakes way back in 1843. The stems of the spearmint plant may or may not have hair-like bristles. The plant has dense undergrowth and an extensive fleshy rhizome beneath the ground. The deep green leaves of spearmint grow up to five to nine cm in length and 1.5 to 3.0 cm in width having finely dented edges. The flowers of this species emerge on thin spikes and are found in white or pink color. Usually the flowers are 2.5 to 3.0 mm in length as well as width.

Spearmint is found to be growing in the wild in temperate climatic regions, particularly in areas that receive shade and where the atmosphere is slightly humid. The height of cultivable varieties of the species varies between one foot (30.8 cm) and three feet (1 meter). These plants bear vividly green leaves and white or lavender hued flowers in whorls on slender spikes. The spearmint plants usually blossom during the later part of the summer. As mentioned earlier, plants of this species are able to grow from the nodes of their runners wherever they come in contact with the ground and multiply rapidly. Unless checked, the plants invade the entire space very quickly. In order to restrict the rapid growth of the plants, people usually grow the plants in large well-drained pots or containers and place these pots under the ground, leaving around three inches of the containers above the ground. This process prevents the runners from running haywire under the soil as also from colonizing above the pots. Alternately, the spread of the runners may also be controlled by creating subversive barricades with plastic sheets around the roots.

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Small HEMA haul!

After finding all these pretty studyblrs, I really wanted to go out and by some stationary/school supplies. Since HEMA is right around the corner for me and they have the cutest stationary, I decided to go there. 

I bought: 
- 12 highlighters 2.5 mm 
- Washi tape 
- Some cute bird shaped paperclips 
- 3 fineliners 0.38 
- Pencil bag

The fineliners were so cheap! Only €0.75 each. The highlighters were also very cheap, only €2,- for the whole pack! Go HEMA! I hope the fineliners don’t bleed through, so I can use them in my planner. Let’s hope so!



Sweet Petite Acanthanura

Almost every time I head out into the Dandenong Ranges (Melbourne, Australia) - at this time of year (autumn) - I find an Acanthanura springtail. They are usually active on the surface on wet, mossy, logs: diurnally. Perhaps they’re out at night too but it’s more difficult taking pictures at in the dark, especially at high magnifications. Mostly I find fully grown adults, stunning animals that they are (take a look here).

This week I found a baby - at least I’m guessing it is likely the baby of the species I commonly see as a grown up in the area. It was about 2.5 mm long (1/10 inch) and very quick, foraging on the surface of the log, not cryptically like most collembola, but openly. Do the spines and colours scream ‘don’t eat me’ even for something this small? I wonder…

Many Little baby Things are everywhere too.

Peggy’s Shirt Pattern Mods

Just a quick tutorial on how I changed up the McCall’s pattern to make my Peggy shirt.

So, this starts with McCalls 6750, which is a tailored misses size (8-24) blouse with wide collar. It’s the closest thing I could find to the shape of Peggy’s blouse, though it does need quite a bit of modification. The main changes are-changing the pleats on the front, making the cuffs a little longer and tighter, changing the shape of the collar slightly, and adding some decorative stitching.

Just a note too-this is only accurate to the front, I did not modify the back to match Peggy’s. Her’s had a square yolk at the shoulders and gathers below, this one has some pleats that give it nice shape but it is not entirely accurate to what she wore.

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Cardiaspina Psyllid-scapes

Macro-photography reveals Many Little Things in our world that would be difficult to see otherwise. White spots on gum tree (Eucalyptus) leaves, that most people would never notice, become alive and amazing when magnified. Here we have the ‘lerps’ (see here to find out what these are) of tiny little psyllids. Psyllids belong to the insect order Hemiptera along with a wide range of insects that principally suck plant juices. Bugs suck, beetles bite.

These pictures show several stages of the species lifecycle.

The eggs, hatched and unhatched, are shown amongst lerps and excuviae (cast or sloughed ‘skin’ of an animal (like a snake), especially of an insect larva) in the second picture; the reddish eggs have hatched whereas the yellow ones haven’t. Hatching from the eggs are the tiny little first instar ‘crawlers’, shown in the bottom image. If you look closely you can already see it beginning to exude a pre-lerp from its rear.

As the nymph (immature) grows through a total of five instars before adulthood, the lerps it lives under are increased in size until they reach the fifth instar stage (top). The lerp of this stage is around 2.5-3 mm across (you could fit 3-4 across your little fingernail) and the nymphs not much longer than 1 mm. Remarkably, the lerps are woven by the nymphs using constituents of the plant juices that are excess to their nutritional needs. Kind of like making baskets from your crap - sort of.

Eventually after 10 days to over 6 weeks, depending on the species, the fifth instar will leave its lerp and moult on the surface on the leaf near its childhood home. The adult, which looks like a tiny little cicada is shown in the fourth image. They will mate, lay eggs on the host and start everything all over again.

Cue music. The cirrrrrcccclllllle offfffffff liiiiiiiiiiiiiiiiiiiiiffffffffe…


Under a city of tents, the deck of HMS Queen Elizabeth is getting a lick of newly developed metallic paint. The unique thermal coating is a combination of aluminium and titanium, able to withstand temperatures in excess of 1,500°C.

Being applied to 2,000 square metres of the 19,000 sq m deck, a robotic device fires powdered metal through a jet of plasma at temperatures of almost 10,000°C (18,000°F). Molten droplets then flatten and quickly solidify, creating a rough coating up to 2.5 mm thick that is bonded to the steel beneath.

Human embryonic stage 9 occurs during week 3 between 19 to 21 days. The embryo is now 1.5 to 2.5 mm in size and somites have begun to form and number between 1 to 3 somite pairs during this stage.

Ectoderm - Neural plate brain region continues to expand, neural plate begins folding over the notochord. Gastrulation continues through the primitive streak region.

Mesoderm - Paraxial mesoderm segmentation into somites begins (1 - 3 somite pairs). Lateral plate mesoderm begins to vacuolate, dividing it into somatic and splanchnic mesoderm and to later form the intra-embryonic coelom. Prechordal splanchnic mesoderm begins to form the cardiogenic region, from which the primordial heart will develop.

Endoderm - Notochordal plate still visible which will form the notochord. Endoderm is still widely open to the yolk sac and germ cells form part of this layer. Extra-embryonic mesoderm on the yolk sac surface begins to form “blood islands”.