What's the difference between haystack and stack?

Haystack


Definition:

  • (n.) A stack or conical pile of hay in the open air.

Example Sentences:

  • (1) The source said that although GCHQ was collecting a "vast haystack of data" what they were looking for was "needles".
  • (2) Then they created Haystack , a censorship workaround that directed requests from computers in Iran through servers elsewhere in the world, hidden in a stream of innocent-looking traffic.
  • (3) Vice chief of the defence force Air Marshal Mark Binskin added: We're not searching for a needle in the haystack, we’re searching for where the haystack is.
  • (4) Snowden doesn’t like the haystack metaphor, used exhaustively by politicians and intelligence chiefs in defence of mass data collections.
  • (5) Trawling big data for suspicious activity is the 21st-century version of finding needles in a haystack.
  • (6) While senator Jeff Merkely of Oregon dramatically waved his phone at Alexander during a June hearing – “What authorized investigation gave you the grounds for acquiring my cellphone data,” Merkely asked – the NSA has typically spoken in generic terms about needing the “haystack” of information from Americans it considers necessary to suss out terrorist connections.
  • (7) Haystack, the software created by Heap under the umbrella of the not-for-profit Censorship Research Center , also demonstrated the increasing awareness of internet censorship during 2009, as it became clear that there were many people and organisations who sought to silence these information streams.
  • (8) Footage from CCTV around Breitscheidplatz where the incident took place and from traffic cameras on the roads leading to the square was being analysed by investigators, but police told German media they were “searching for a needle in a haystack”.
  • (9) In this case, Inglis says: "We needed the haystack".
  • (10) In addition to seeking "the needle in the haystack," the need to monitor a broader phenotypic indicator such as chronobiological interaction is hypothesized.
  • (11) Heap continues to work with Haystack, and has a list of countries, from Australia to Afghanistan, that he will be tackling next.
  • (12) Walks into the countryside took us past rivers, forests and farms where dome-shaped haystacks were being built by hand.
  • (13) That seems to have been the case with the fiasco of Haystack, a project launched amid the 2009 Iranian election protests by a US programmer, Austin Heap, which promised to allow dissidents in Iran to circumvent state censorship.
  • (14) We are looking for needles in a nationwide haystack, and that’s hard.” As the political storm raged across the country, in Orlando the sombre job of informing families of those who had died continued.
  • (15) Rifkind said: "In recent months concern has been expressed at the suggested extent of the capabilities available to the intelligence agencies and the impact upon people's privacy as the agencies seek to find the needles in the haystacks that might be crucial to safeguarding national security."
  • (16) The state department endorsed the project (and Heap won a Guardian innovation award for his efforts) but Haystack was abruptly withdrawn amid allegations that its poor design exposed activists to possibly fatal harm, revealing information about them to Iran's state monitors.
  • (17) The great difficulty of the agencies appears to be holding on to all the needles they pull out of haystacks, yet the lazy instinct is to demand ever more hay.
  • (18) "Firstly, locating the tunnel entrances is very difficult; they are needles in a haystack."
  • (19) The NSA argues that it needs “the haystack” of all domestic phone records in order to spot connections to terrorism, as outgoing deputy NSA director John Inglis said Friday .
  • (20) I think it’s actually made us less safe because I think the haystack is so large that we’re getting lost in the haystack.” But Paul has made little headway in the crowded Republican primary and the fresh support from Cruz, who recently overtook Donald Trump in polling in Iowa, threatens to catapult the libertarian issue back to the top of the party debate.

Stack


Definition:

  • (a.) A large pile of hay, grain, straw, or the like, usually of a nearly conical form, but sometimes rectangular or oblong, contracted at the top to a point or ridge, and sometimes covered with thatch.
  • (a.) A pile of poles or wood, indefinite in quantity.
  • (a.) A pile of wood containing 108 cubic feet.
  • (a.) A number of flues embodied in one structure, rising above the roof. Hence:
  • (a.) Any single insulated and prominent structure, or upright pipe, which affords a conduit for smoke; as, the brick smokestack of a factory; the smokestack of a steam vessel.
  • (a.) A section of memory in a computer used for temporary storage of data, in which the last datum stored is the first retrieved.
  • (a.) A data structure within random-access memory used to simulate a hardware stack; as, a push-down stack.
  • (n.) To lay in a conical or other pile; to make into a large pile; as, to stack hay, cornstalks, or grain; to stack or place wood.

Example Sentences:

  • (1) Thin films (OD approximately 0.7) of glucose-embedded membranes, prepared as a control, showed virtually 100% conversion to the M state, and stacks of such thin film specimens gave very similar x-ray diffraction patterns in the bR568 and the M412 state in most experiments.
  • (2) The planar 7H-pyridocarbazole cations form stacks approximately parallel to b. Interactions between stacks occur by weak van der Waals forces.
  • (3) How does it stack up against the competition – and are there any nasties in the small print?
  • (4) Rayburn, who was also told by his jobcentre he would lose his benefits if he did not work without pay, said he spent almost two months stacking and cleaning shelves and sometimes doing night shifts.
  • (5) Carcinogen-modified oligodeoxynucleotides were single-stranded, but there were often considerable stacking interactions between the pyrenyl residues and the oligonucleotide bases, indicating that electrophoresed oligomers were single-stranded but in a native, versus random coil, conformation.
  • (6) Intermolecular contacts occur in both oligomers in the minor groove: in the B form through twisted guanine-guanine hydrogen bonding, and in the Z form through base-base stacking and the water network.
  • (7) If we were to have a plebiscite before the end of the year, and you were to reverse-engineer that, it would make interesting speculation about the timing of an election.” Abetz said in January he would need to see whether a plebiscite was “above board or whether the question is stacked” before deciding to heed any result in favour of marriage equality.
  • (8) Using polyclonal and monoclonal antibodies we show in normal cells precursor forms of beta-gal in the rough endoplasmic reticulum (RER) and in the Golgi apparatus throughout the stack of cisternae.
  • (9) The AFB1 moiety is face-stacked in the major groove with its long axis approximately perpendicular to the helix axis.
  • (10) Between February and July of 1989, 22 patients underwent the use of the Stack autoperfusion catheter following acute occlusion or obstructive dissection during coronary angioplasty; in 20 cases conventional balloon was used in an attempt to correct the angiographic appearance followed by the use of Stack catheter when results were sub-optimal.
  • (11) The breaking up of the microtubular cytoskeleton is followed by vesiculation of the rough endoplasmic reticulum and partial atrophy, as well as dispersion of the stacks of Golgi cisternae.
  • (12) She walks past stack after stack of books kept behind metal cages, the shelves barely visible in the dim light from the frosted-glass windows.
  • (13) The notochord, which is composed of a stack of flat cells surrounded by a connective tissue sheath, elongates dramatically and begins straightening between stages 21 and 25.
  • (14) However, AGC and AC in their hydrogenated form also caused aggregation and stacking of the stratum corneum lipid liposomes.
  • (15) Their lineup proved to be stacked, with breakouts from AL home run leader Chris Davis and doubles machine Manny Machado, who powered the O's through starting-pitching issues to hang in a tight division.
  • (16) Electron energy-loss spectroscopic element-distribution images are acquired from cytochemical reaction products in a variety of cellular objects: (1) colloidal thorium particles in extra-cellular coat material, (2) iron-containing ferritin particles in liver parenchymal cells, (3) barium-containing reaction products in endoplasmic reticulum stacks, (4) elements present in lysosomal cerium- and barium-containing precipitates connected with acid phosphatase (AcPase) or aryl sulphatase (AS) enzyme activity.
  • (17) We also observed slender tubules connecting Golgi stacks to neighbouring rough endoplasmic reticulum.
  • (18) I always get brown meat on the chicken, and when I do finally remember to stack the dishwasher, do I get any credit?
  • (19) (C13-A14-C15) segment at pH 8.9 establishes that X5 and A14 are directed into the helix, partially stack on each other, and are not stabilized by intermolecular hydrogen bonds.
  • (20) Multiple jobseekers can work in one store at the same time, cleaning or stacking shelves and competing against each other for a potential offer of paid work.

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