View allAll Photos Tagged cosine
model: Emily
lago d'Orta, Italy
©ALL RIGHTS RESERVED. My pictures may not be downloaded, copied, published, reproduced, uploaded, edited or used in any way without my written permission.
la mia scarsa presenza ha mille motivi....il diluvio che si è abbattuto sul lago mi ha causato problemi domestici e tanti grattacapi, una brutta caduta mi vede claudicante e dolente e inevitabilmente bradipo in vasca, il nuovo orario mi stimola l'andare in letargo e poi ho tutte le cosine a mano che mi hanno commissionato per Natale da fare....con il prezioso supporto delle raGatte, of course !
The side of dunes facing the wind is described by a cosine function. You can describe other features of dunes with other relatively simple functions based on wind speed, grain size, and so on. However, the movement of dunes is described by differential equations - even more fun than trigonometry!
A Google search or any gen AI program can introduce you to the details.
Great Sand Dunes National Park.
Click Image To See Full Detail Size. :)
Wearing:
Face Tattoo – Hmaem-Winter make-up for *SoliDea FoliEs* by riri ninni NEW!
Outfit consists of pieces from Solidea Folies Outfits listed accordingly:
*SoliDea FoliEs*John _ Jacket NEW!
*SoliDea FoliEs* Chains _necklace 1 NEW!
*SoliDea FoliEs* Winter Jewel NEW!
Hair – Analog Dog – cosine winter NEW!
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The power of art...introduction (2 of 2).
n.*Snugness:
1. A state of warm snug comfort.
2. A state of being relaxed and feeling no pain.
"Comfy Corner", Somewhere, Québec, Canada
Tri-gono-metry derives from the Greek words trigonon (τρίγωνο; triangle) and metron (μέτρο; measure), reflecting its focus on measuring triangles and their properties, dealing primarily with six trigonometric functions:
1. sine (sin),
2. cosine (cos),
3. tangent (tan),
4. cotangent (cot),
5. secant (sec), and
6. cosecant (csc)
Squared trigonometric identities involve the square of trigonometric functions and are fundamental in simplifying expressions and solving equations like the Pythagorean Identity and Double Angle Formulas
Regina and Angelita (my mother) are cousins. Their families met for a meal and my mother asked me to copy this old picture she had. I did an HDR and restored the picture as well as I could.
Regina i Angelita (ma mare) són cosines. les seues famílies es reuniren per a un dinar i ma mare em demanà que copiara aquesta fotografia vella que es feren quan eren xiqueters. Vaig fer un HDR i la vaig restaurar tan bé com vaig poder.
I think that making digital copies from old photos is like to preserve them from a further degradation. I did that with our family pictures and that work took me two years, I put the pictures on a DVD and all my family has a copy now
When relaxing on the coach, I sometimes take a blanket over myself and bend my knees up to creative a small pocket of warmth and cosines underneath...and Felix is quick to discover and enjoy :-)
Today i em whole day will be absent from Flickr
i em Going to Lahore to C off my Cosine
So when i will b back i will catch you all my dear friends okay
"I used to like triangles, but then I got to Trigonometry in math class. Who knew that three sides could be so complicated?"
- - - - -
Created for the FLickr Friday theme, TRIANGLE.
IN ENGLISH BELOW THE LINE
Foto presa amb una càmera de gran format Tele-Graflex, fabricada cap a 1914; objectiu Carl Zeiss Tessar f4.5 / 180mm; pel·licula Fomapan 100.
La Leica original fou una de les càmeres més copiades de la historia, en especial després de la SGM, tant per sovietics com per japonesos (i altres).
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Picture taken with a large format reflex camera Tele Graflex, made c.1914; Carl Zeiss Tessar f4.5 / 180mm lens; Fomapan 100.
The original Leica camera was much copied, specially after WW2, specially by Soviet and Japanese manufacturers.
Leica M2
Voigtlander 35mm f/1.4 Nokton II MC @ f/1.4 (yellow filter)
Fomapan 100 in Clayton F76 (1:9 @ 68 deg for 7 min)
Pimelea linifolia subsp. linoides
Luxuriant shrub to 2.5 m high; often growing in exposed conditions in the Blue Mountains national park.
It looks splendorous compare with its smaller cosine 'Slender Rice Flower' (Pimelea linifolia) we see in Queensland.
The necklace is made of pardo art clay. It's based on my own design on the topic of Geometry.
It consists of three components, triangle, square and circle. All have a pattern of triangles created by technique I called Overlapping grids. Components are connected by parts of a striped shapes.
Stacks of carefully polished, coated and cut silicon wafers – normally used to manufacture integrated circuits – that will focus X-rays inside ESA’s Athena space observatory, due for launch in 2028.
Invisible X-rays tell us about the very hot matter in the Universe – black holes, supernovas and superheated gas clouds. But energetic X-rays do not behave like typical light waves – try to reflect them with a standard mirror and they are absorbed. Instead, X-rays can only be reflected at shallow angles, like stones skimming across water.
That means multiple mirrors must be stacked together to build a telescope. ESA has developed ‘silicon pore optics’ to see much further into space than the ageing XMM-Newton X-ray observatory .
This approach is based on industrial silicon wafers, taking advantage of their stiffness and super-polished surface. Grooves are cut into the wafers to form pores through which the X-rays are focused. A few dozen at a time are stacked together to form a single mirror module. Many hundreds of these modules will be combined to form the optics of the X-ray mission.
To find out more, check our video interview with ESA optics engineer Eric Wille.
Credit: cosine
For such incredible speeds, this was a remarkably still moment. Let me explain. In the process of posting this shot, it made me think about the rotation of the Earth. Actually my first thread of thought was what would it be like to witness your first sunset?
Imagine spending all day in light and warmth, then marveling at the changing colors. Having the joy and fascination turn to concern as you noticed the sun seeming to accelerate towards the horizon (just an optical illusion). Wondering if there would be an explosion when they met. What would happen when the sun crashed into the horizon... nothing. It sinks. Then it is gone. The world grows darker and darker while you stand there wondering what is going on. When will the sun come back? If ever. What an experience that would be. And here we are, old hands at this sunset thing. We take it for granted, most of us concerned merely with getting our cameras into the best place to capture as much of the scene as best as we can.
So naturally this led to wonder about how quickly I was traveling at that moment. I had to do my research. Finding the speed of the Earth was easy. I went to some website, askanastronomer.com or something like that. Got a speed, double checked my sources. Verified that yes, the Earth travels at about 67,000 mph around the sun.
That makes the fellow ahead of you who insists on obeying the speed limit exactly seem slightly less relevant.
But then I wanted to know how fast I was spinning due to the Earth's rotation on its axis. Well the answer to that is about 733 miles per hour. The math here by the way is to multiply the cosine of your latitude by 1037.5464, which is the speed of the Earth's rotation at the equator.
Fun stuff huh? This is what I think about when I am sitting at home at night and the power goes out (an homage to George Carlin).
Anyway, I could go farther and figure that our galaxy is also traveling at some speed, and our universe is expanding at a certain rate, and figure those speeds in too. But I think this is sufficient.
I am not really trying to impress with this math, I didn't calculate this on my own. Rather, my point is when I go out, I like to learn as much as I can about the big picture, and all the little ones within it. It is not really enough for me to set up behind a rock at sunset and make this image. I want to understand this world better, to feel like I am a bit more of a connection to it. To have maybe the faintest inkling of an idea of what is going on.
To try and not take it all for granted. Because when you start thinking about the Earth speeding through space spinning on its axis like a massive top just a bit off-kilter. When you imagine what it would be like to witness a sunset for the first time, and simultaneously wonder if this may also be the last because who knows where that sun is going once it is below that horizon. Well then, you start to get a grasp of the enormous majesty and magic of it all.
On an unrelated note. This was taken with a Hasselblad one fine evening at Arcadia Beach along the Oregon coast. Not one of the flashiest spots on the Oregon coast, but one of my favorite nonetheless. I like its simplicity. I dislike the uneven density in the blue sky. It is faint but I notice it. I will have to check the scan against the optical print. Sometimes it amazes me how different a digital scan can be versus a true optical print. Sometimes the scans are better, sometimes not. Anyway, just a random thought.
Manly beach, summer 2017. Leica IIIf Cosinal-Voigtlander 21mm f/4 LTM Kodak Tri-X 400 in Fomadon LQN. V700 scan.
In Flickr Explore May 23, 2018
[explore #180 on 05.12.08]
edit: well.. I don't think that bratz are better than barbie. I don't like bratz in the same way I didn't like barbie when I was a child. but little girls like bratz now. yes, the same little girls who wear make up at 10 and be on the pill at 14. and they buy bratz much more then barbie dolls. cause they're cool, and fashion.. and bitchy too :D
edit: alòra. io non penso che le bratz siano megliE. cioè, a me fanno schifo, così come da piccola mi stavano sulle palle le barbie, però dai.. barbie è barbie. ste cosine deformi col cranio gigante cosa vogliono? ma fatto sta che le bambine ora vogliono le bratz. le stesse bambine che a 10 anni si truccano già e a 14 iniziano a fare uso di contraccettivi, sì. loro preferiscono le bratz, perchè sò più fèscion e cùl, e sono anche un pò più troiette :D
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Mira que tinc vistes les seves "cosines" blanques, però aquesta cuereta groga (motacilla flava) costa més de veure.
Fotografiada a la Maresma de les Filipines, al Delta del Llobregat.
ca.wikipedia.org/wiki/Cuereta_groga
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This wagtail, the Western Yellow Wagtail (motacilla flava) is much less usual than it's white 'cousin'. At least here in Catalonia.
Picture taken in the Llobregat delta marshlands, Catalonia.
Shot taken for Saturday Self Challenge 02/04/2022 ----
Measurement and units of measurement . However , not used in the end .
My first thoughts were to work with the measurement of Albedo , but this form of measurement is on a scale and not with any units - so then back to a previous life for this week’s challenge .
Righto , back to the 1970s then when I was a land surveyor and that was all about measurement , there was linear albeit imperial or metric measurement and there was angular measurement ie Degrees-Minutes & Seconds .
For any large scale survey , it could be linked to the National Grid system of the Ordnance Survey by the network of Triangulation Pillars throughout the United Kingdom . Here we see one of the 6,500 or so pillars and this one is on Box Hill overlooking Dorking and southern Surrey - like many showing signs of wear and without the usual white paint . What you can see on the top is the 3 pronged brass inset plate in which a theodolite would sit and straight away be accurately centered . In the first comment box is another view of the trig pillar here with the elevation bracket and trig number - and for a laugh a terrible old shot of me working with a theodolite , this time on a tri-pod .
Of course it is all GPS now and fancy bits of kit that I would be lost on nowadays , at least doing the job old school you had to know the fundamentals and not rely on tec to do the work - no more computations with giant log, sine,cosine and tangent tables to 10 or so decimal places - just a push of the button to convert polar to rectangular co-ordinates !!
Triangulation Pillars --
Trigpoints are the common name for "triangulation pillars". These are concrete pillars, about 4' tall, which were used by the Ordnance Survey in order to determine the exact shape of the country. They are generally located on the highest bit of ground in the area, so that there is a direct line of sight from one to the next. By sitting a theodolite (an accurate protractor built into a telescope) on the top of the pillar, accurate angles between pairs of nearby trigpoints could be measured. This process is called "triangulation".
A major project to map out the shape of Great Britain began in 1936. The network of triangulation pillars, with accurately known positions, led to the excellent OS maps which we enjoy today. The coordinate system used on these maps is known as the "National Grid", and it is essential that you are familiar with this system if you are to get the most of OS maps. The OS provide an introduction to the National Grid on their website.
Baseline measurement - measuring size
The triangulation pillars determined the exact shape of the country, but what about distances? Triangulation itself only shows you the shape of the land, not the scale. The scale of the mapping was determined in 1784 by laying a series of glass rods along Hounslow Heath. Using this single measurement, plus the network of triangulation pillars, the size and shape of the country was determined to within about 20m!
Fundamental Benchmarks - measuring profile
In order to determine heights, a different type of surveying was required. Around 200 "fundamental bench marks" (or FBMs) were located across the country. These consist of an underground chamber topped by a small pillar. Between these 200 FBMs, around 750,000 "lower order benchmarks" were scratched into walls etc. Precise levelling built up a picture of the profile of the land, giving rise to the spot heights and contour lines you see on today's maps.
Newlyn Tide Gauge - measuring sea level
Just as the triangulation pillars determined the shape of the land, but not its size, the FBMs determine the profile, but not the absolute height. In order to define a zero height, the sea level, measured by a tide gauge in Newlyn, Cornwall was averaged over a period of 6 years from 1915 to 1921. This gave "Mean Sea Level" (MSL) and all heights on OS maps are quoted as height above mean sea level.
The modern era - GPS
Nowadays, most of the monuments described above have fallen into disuse. However a number of the old triangulation pillars and FBMs, along with various newly installed bolts and rivets, now form the "Passive Station" network. This is a set of around 1000 locations which have been accurately measured using GPS (Global Positioning System) technology. There are also about 30 "active stations" which transmit positional information, in much the same way as the GPS satellites, which can be received by survey-quality GPS receivers. Accurate locations of both active and passive stations are published on the OS's National GPS Network website.
( info - trigpointing uk )
For a sight & sound -AC/DC
Ilam Cross, Staffordshire - in slightly surreal mode.
I wrote an app in C# to only retain colours close to a colour selected with the mouse (that of the gold cross, in fact). It treats colours as 3-D vectors in RGB space, and raises the cosine of the angle between the selected colour vector and the colour vector of each pixel to a selected power. In this case COS^12. I then raised the saturation.
What looks like a light sabre is actually a laser beam guided in its path through a hair-thin jet of water, in the same manner as conventional fibre optics.
This water jet provides a large ‘processing depth’, allowing parallel cutting of larger samples. Its water also serves to continually cool the cutting zone and efficiently remove cut material.
This Laser Microjet machine from Synova SA in Switzerland is being employed by cosine in the Netherlands to slice novel X-ray optics for ESA’s NewAthena space observatory to survey the hot, energetic Universe.
Energetic X-rays don’t behave like typical light waves: they don’t reflect in a standard mirror. Instead they can only be reflected at shallow angles, like stones skimming along water. So multiple mirrors must be stacked together to focus them. NewAthena will therefore employ ‘silicon pore optics’, based on the precisely-aligned stacking together of tens of thousands of mirror plates made from industrial silicon wafers, which are normally used to manufacture silicon chips.
This technology – developed by ESA, cosine and other partners – will enable the building of a 2.6 m diameter X-ray lens for NewAthena’s telescope. Production of these mirror modules has reached the demonstration stage and their mass production is now being prepared, to ready NewAthena for launch in 2037 as one of ESA’s major ‘Large class’ missions.
Credits: cosine
Very red berries on a tree by the High Peak Trail at Hurdlow, Derbyshire.
Colour isolation done using software I wrote myself. I use the mouse to click on a colour I want to preserve, then take the cosine of the angle between the rgb vector of the chosen colour, and the rgb colour vector of each pixel in the picture. I then raise the cosine to the power 2,3,4,5 or 6, and use this to determine the colour versus greyscale weighting of each pixel. Written in Pentium Assembler code.
ESA has signed a contract for its biggest small nanosatellite yet: GomX-4B will be a ‘6-unit’ CubeSat, intended to demonstrate miniaturised technologies, preparing the way for future operational nanosatellite constellations.
GomX-4B is double the size of ESA’s first technology CubeSat, GomX-3, which was released from the International Space Station last year.
“ESA regards CubeSats, based on standardised 10 cm units, as very promising for early testing of new technologies in space at a low cost,” explains Roger Walker, heading ESA’s technology CubeSat initiative.
“GomX-4B’s increased size will accommodate more technology payloads, and enables a higher level of performance.”
The contract with Danish CubeSat specialist GomSpace is supported through the In-Orbit Demonstration element of ESA’s General Support Technology Programme , focused on readying new products for space and the marketplace.
Aiming for flight in late 2017, GomX-4B will be launched and flown together with GomX-4A, designed by GomSpace for the Danish Ministry of Defence under a separate contract.
The two CubeSats will stay linked through a new version of the software-defined radio system demonstrated on GomX-3, while their relative positions along their shared orbit is controlled up to a maximum 4500 km.
Such intersatellite links will allow future CubeSat constellations to relay data quickly to users on the ground. The same radio system will also be used for rapid payload data downloads to Earth.
Nanospace in Sweden are contributing the highly miniaturised cold-gas thrusters for controlling the orbit, allowing future CubeSat-based constellations to be deployed quickly after launch.
Additional technology payloads include a compact hyperspectral imager called HyperScout, developed by Cosine Research in the Netherlands; a miniaturised startracker from Innovative Solutions In Space , also in the Netherlands; an inhouse ESA experiment to test components for radiation hardness; and an ADS-B antenna for aircraft tracking, developed from the GomSpace system tested on GomX-3.
Credit: GomSpace