Tijd in de war?!

Alles puur natuur nier ;-)
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baphomet
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Lid geworden op: za 21 aug 2010, 16:08

do 09 jun 2011, 03:10

Tja dat het artikel wat weinig diepgang bied naar bronnen en bewijs ben ik met je eens, dat was me wel opgevallen, maar een deel van de feiten komen weer overeen met het geen ik hier las:

http://en.wikipedia.org/wiki/Polar_vortex

A polar vortex is a persistent, large-scale cyclone located near one or both of a planet's geographical poles. On Earth, the polar vortices are located in the middle and upper troposphere and the stratosphere. They surround the polar highs and are part of the polar front.

The vortex is most powerful in the hemisphere's winter, when the temperature gradient is steepest, and diminishes or can disappear in the summer. The Antarctic polar vortex is more pronounced and persistent than the Arctic one; this is because the distribution of land masses at high latitudes in the northern hemisphere gives rise to Rossby waves which contribute to the breakdown of the vortex, whereas in the southern hemisphere the vortex remains less disturbed. The breakdown of the polar vortex is an extreme event known as a Sudden stratospheric warming, here the vortex completely breaks down and an associated warming of 30-50 degrees Celsius over a few days can occur. The Arctic vortex is elongated in shape, with two centres, one roughly over Baffin Island in Canada and the other over northeast Siberia. In rare events, the vortex can push further south as a result of axis interruption, see January 1985 Arctic outbreak.

The chemistry of the Antarctic polar vortex has created severe ozone depletion. The nitric acid in polar stratospheric clouds reacts with CFCs to form chlorine, which catalyzes the photochemical destruction of ozone. Chlorine concentrations build up during the winter polar night, and the consequent ozone destruction is greatest when the sunlight returns in spring (September/October). These clouds can only form at temperatures below about -80°C. Since these temperatures are rarely reached in the Arctic, ozone depletion at the north pole is much less severe than at the south. Accordingly, the seasonal reduction of ozone levels over the Arctic is characterized as an "ozone dent," whereas the more severe ozone depletion over the Antarctic is considered an "ozone hole.".

The Antarctic Polar Vortex forms during the polar winter. The ozone hole lasts from August to November.

Other astronomical bodies are also known to have polar vortices, including Venus (double vortex - that is, two polar vortices at a pole), Mars, Jupiter, Saturn and Saturn's moon Titan.

EDIT:

Lees ook dit onderzoek maar eens: http://icb.oxfordjournals.org/content/41/1/3.full


Hieronder even een stukje...

Abstract

Every spring for the past two decades, depletion of stratospheric ozone has caused increases in ultraviolet B radiation (UVB, 280–320 nm) reaching Antarctic terrestrial and aquatic habitats. Research efforts to evaluate the impact of this phenomenon have focused on phytoplankton under the assumption that ecosystem effects will most likely originate through reductions in primary productivity; however, phytoplankton do not represent the only significant component in ecosystem response to elevated UVB. Antarctic bacterioplankton are adversely affected by UVB exposure; and invertebrates and fish, particularly early developmental stages that reside in the plankton, are sensitive to UVB. There is little information available on UV responses of larger Antarctic marine animals (e.g., birds, seals and whales). Understanding the balance between direct biological damage and species-specific potentials for UV tolerance (protection and recovery) relative to trophic dynamics and biogeochemical cycling is a crucial factor in evaluating the overall impact of ozone depletion. After more than a decade of research, much information has been gathered about UV-photobiology in Antarctica; however, a definitive quantitative assessment of the effect of ozone depletion on the Antarctic ecosystem still eludes us. It is only obvious that ozone depletion has not had a catastrophic effect in the Antarctic region. The long-term consequences of possible subtle shifts in species composition and trophic interactions are still uncertain.
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INTRODUCTION

Environmental concerns about ozone depletion arise from the fact that the ozone layer in Earth's atmosphere is an effective filter for the biologically harmful ultraviolet B radiation (UVB, 280–320 nm) present in sunlight. Even without ozone depletion, UVB penetrates into surface waters of the oceans and is a daily environmental hazard to many marine organisms. Therefore, increased ultraviolet radiation associated with recorded and predicted decreases in global stratospheric ozone is expected to have ecological consequences in marine communities. The most extensive destruction of ozone occurs over the Antarctic continent and the surrounding Southern Ocean. In this geographic region, over 50% depletion of column ozone has occurred each spring (Sept–Dec) for the past two decades, causing increased amounts of UVB to reach Antarctic marine environments (Frederick et al., 1998; Schoeberl et al., 1996).

A major obstacle in assessing ecological UVB effects on the Antarctic marine ecosystem is that while ozone depletion has been occurring for over 20 yr, scientists did not accept the possibility of the Antarctic ozone “hole” until nearly a decade after the depletion cycles began (Solomon, 1990). Therefore, the first efforts to examine the biological effects of Antarctic ozone depletion did not commence until after 10 yr of repeated seasonal ozone depletion had already occurred. By this time any ozone-related changes in the marine environment would have been initiated and the ecosystem altered before biological investigations began. Species or individuals within populations that could not tolerate the immediate changes in UVB during the early rounds of ozone depletion would have been eliminated. The organisms present today are those that have survived two decades of increased springtime UVB.

Research conducted over the past decade has yielded a great deal of detailed information on biological responses to UVB exposure and there have been a number of prior reviews related to the effects of ozone depletion in Antarctica (Karentz, 1991, 1992; Marchant, 1997; Vernet and Smith, 1997; Weiler and Penhale, 1994; and others). However, there is still no satisfactory answer to the overriding question of “What is the effect of ozone depletion on the Antarctic ecosystem?”. This paper builds on previous reviews and updates our understanding of how increased UVB radiation resulting from ozone depletion affects marine organisms in the Southern Ocean.
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OZONE DEPLETION AND INCIDENT UV IN ANTARCTICA

Since the late 1970s, ozone concentrations over the Antarctic and surrounding Southern Ocean have exhibited a seasonal cycle of springtime minima exceeding 50% decline from “normal” ozone levels (“normal” ? 300 Dobson units, DU) (Farman et al., 1985; Newman, 1994; Schoeberl et al., 1996). This annual phenomenon has been directly attributed to chlorofluorohydrocarbons (CFCs) and other atmospheric anthropogenic pollutants that have been released into the atmosphere over the past 70 yr (Anderson et al., 1991; Jones and Shanklin, 1995). Depletion of ozone over the Antarctic is caused by a combination of chemical and physical features of the springtime Antarctic atmosphere that favor ozone loss. These include 1) the presence of the polar vortex, an atmospheric circumpolar current that effectively isolates a large mass of air over the south polar region from adjacent air masses to the north; 2) extremely cold temperatures; 3) formation of polar stratospheric clouds that provide appropriate substrates for heterogeneous chemistry; and 4) after a long dark winter period, the presence of solar radiation that is required to catalyze ozone dissociation.

During the past two decades the duration of the annual ozone depletion period has increased, minimum levels over the Antarctic have steadily declined and the areal extent of the depletion within the polar vortex has expanded (Jones and Shanklin, 1995) (Fig. 1). Superimposed on these annual trends are short-term changes resulting from the rotation of the polar vortex (Fig. 2). Thus, coastal areas of the Antarctic continent and adjacent ocean waters under the margins of the vortex can be alternately exposed to high and low UVB levels within a period of several days (Fig. 3). The fluctuations in ozone concentrations and concomitant changes in incident UVB result in differences in the intensity of UVB in the water column and the depth of UVB penetration (Fig. 4). It is important to note that ozone depletion does not significantly affect UVA or higher solar wavelengths and UVA attenuation in water is lower than for UVB. Therefore, the incident and in water ratios of UVB to UVA vary with ozone levels and depth.

With widespread compliance to Montreal Protocol standards for the reduction of CFC usage and release, there is a positive prognosis for recovery from ozone depletion (Hofmann et al., 1997; Madronich et al., 1998; Montzka et al., 1999). It is expected that within 40–60 yr, global ozone levels will return to “normal” and springtime ozone depletion over the Antarctic will no longer occur. While this is encouraging news, the impact of the past 20 yr of ozone depletion and of the predicted 4–6 decades of continued ozone losses on the Antarctic ecosystem is still uncertain.
Previous SectionNext Section
UV PHOTOBIOLOGY OF ANTARCTIC ORGANISMS
Bacteria

While there have been a number of investigations of UV effects on freshwater Antarctic cyanobacteria (e.g., Quesada et al., 1995; Quesada and Vincent, 1997; Roos and Vincent, 1998; Vincent and Quesada, 1994), relatively little has been reported about the impact of ozone depletion on Antarctic marine heterotrophic bacteria. Early studies show that Antarctic bacterioplankton isolates do not possess UV-screening compounds that might protect cells, but they do have capability for recovery from UV-induced damage (Karentz, 1994). A primary cellular target for UVB is DNA. DNA absorbs UVB, altering the molecular structure and potentially impairing DNA function. There are several metabolic pathways that repair DNA damage and an organism can have various combinations of these repair mechanisms. Some Antarctic bacteria have photoreactivation, an enzymatic repair process that requires UVA or higher wavelength radiation (Karentz, 1994).

Another repair pathway in bacteria is the SOS response. The timing of induction of genes involved in the SOS response is an important factor in the level of UV-tolerance within Antarctic microbial populations (Helbling et al., 1995). Initiation of the SOS response before UV exposure occurs can significantly increase bacterial cell survival. Under natural daylight conditions, the SOS response in Antarctic microbial communities exhibits a diel cycle with activation of genes maximized during the early evening to support increased removal of DNA photoproducts during the relatively darker “night” period (Jeffrey et al., 2000).

In Antarctic bacterial communities, UVA (320–400 nm) exposure can contribute to a greater proportion of UV-induced death than UVB wavelengths (Helbling et al., 1995; Marguet et al., 1994). Similar observations are reported from temperate bacteria (Sommaruga et al., 1997) and Antarctic phytoplankton (see below). UVA is not attenuated by ozone, does not cause significant DNA damage by direct absorption and can facilitate DNA repair through photoreactivation. However, both UVB and UVA are involved in a variety of photochemical reactions in seawater and in intracellular fluids that result in the production of reactive species (e.g., peroxide and hydroxyl radicals) that cause oxidative damage to organic molecules (including DNA). Although UVB wavelengths are more harmful on a per photon basis, UVA wavelengths comprise a much greater proportion of the UV radiation present in the solar spectrum; therefore, under ambient sunlight, UVA elicits a stronger biological response.

Two important aspects of the cumulative impact of UV are the intensity and the duration of exposure. For planktonic organisms, vertical mixing of the water column is a key issue in regulating these two factors. On calm days with little wind, UV-induced DNA damage in Antarctic bacterioplankton is greatest at the surface (0–10 m) and then decreases sharply with depth in the stabilized water column (Fig. 5) (Jeffrey et al., 1997). On moderately windy days, turnover of the water column promotes lower damage accumulation and more uniform damage levels with depth. It is presumed that as cells are moved more quickly out of shallow waters with higher UV irradiances, the balance of damage and repair shifts in favor of repair processes and cells experience a more expedient recovery. The issue of vertical mixing is also crucial for the evaluation of UV effects on eukaryotic planktonic organisms (see below).

Meer in de link dus, incl. afbeeldingen etc.



En ook dit is een meer dan interessante link: http://www.sciencemag.org/content/251/4989/39.abstract
1119 AD
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ThaViking
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do 09 jun 2011, 04:59

cker die polar vortexes is niet waar ik moeite mee heb, maar ik heb een beetje moeite met die tijd verandering, kunnen ze niet iemand - vrijwillig natuurlijk - onder een ballon hangen van een jaar of 80 en dan kijken of die er weer uit ziet als in '65 ^^.
Wees aardig tegen mensen als je omhoog klimt, want je komt ze weer tegen als je naar beneden gaat...
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baphomet
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do 09 jun 2011, 05:02

Ja dat zou ik ook willen weten inderdaad... de effecten op een mens... Misschien een ter dood veroordeelde er aan hangen...??

:silly:
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Aillas
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Lid geworden op: zo 05 jun 2011, 10:17

do 09 jun 2011, 16:00

Thnxx voor de input! Ga eens ff verder researchen. De EU heeft ook een hoop info, kijken of ze hebben geklaagd bij de VS over te grote boormachines.

Ff zijstraatje: het bericht heeft ook een oppervlakkige gelijkenis met The Thing van Carpenter, die zich heeft laten inspireren door Lovecraft. Berichten die zijn oorsprong kunnen hebben in Lovecraft verhalen kom ik, tot mijn verbazing, (te?) vaak tegen, enfin....

P.S., als iemand een thermopak regelt ga ik wel aan die ballon hangen B)
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do 09 jun 2011, 18:39

Electric watches in Sicily (Italy) running all 20 minutes faster,

Da oltre una settimana gli orologi elettrici di Catania, ma anche di altre città della Sicilia, sembrano letteralmente impazziti. Improvvisamente cominciano a correre riuscendo ad andare avanti anche di 15/20 minuti al giorno. Un fenomeno inspiegabile che ha acceso la curiosità di due periti informatici della St Microelectronics, la multinazionale dei semiconduttori con sede a Catania
Translation: "Since more than a week ago, electric watches and clocks in the city of Catania, but in other Sicilian cities too, seem to have become crazy. The clocks are faster, up to 15/20 minutes/day. A phenomenon hard to be explained that made two ICT experts of St Microelectronics (multinational in the semi-conductors sector) very curious"

The articles continues saying that the same problem is also with microwaves ovens and alarm clocks. Same as with the Caronia mistery (Above Top Secret) magnetic fields and peaks in the electrical grid are being blamed for such a mistery.

The phenomemon seems concentrated in the Catania's area, not far from the Etna volcano.


http://www.corriere.it/cronache/11_giug ... 2eeb.shtml
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Dromen
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Lid geworden op: za 21 aug 2010, 06:38

do 09 jun 2011, 18:49

Ik kom vanochtend op kantoor...

Klok loopt nog steeds een uur en 5 minuten voor...
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Lid geworden op: zo 22 aug 2010, 09:30

do 09 jun 2011, 19:49

En als je hem weer goed zet dan ?

Digitale klokjes werken op een kristal, quartz in dit geval want dat heeft een frequentie van 59,999nog wat en dan kan je dus aardig nauwkeurig tot 60 tellen.
het is niet wat het lijkt,... het is veel erger
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Dromen
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do 09 jun 2011, 20:05

Ik heb hem gister met opzet niet teruggezet, ik wacht nog ff een nachtje ;-) Stiekem toch nieuwschierig, lol!
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Lid geworden op: zo 22 aug 2010, 09:30

do 09 jun 2011, 20:11

Maar als het zo is dat die klokjes onder invloed zijn van "iets" dat van buiten komt dan kan je binnenkort je PC ook aan de straat zetten, dat gebruikt een vergelijkbare techniek.

Nu ben je niet meer verplicht om je administratie op papier te hebben, het mag ook digitaal, aangifte belasting ed. moet zelfs digitaal... LOL keep it comming ! :woohoo:
het is niet wat het lijkt,... het is veel erger
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vr 10 jun 2011, 14:08

http://www.godlikeproductions.com/forum ... 523723/pg1

Er loopt nu ook een draadje over op godlikeproductions.

CATANIA - currently the only "real risk of being in office is a quarter of an hour in advance. But the curious fact in itself and, as was expected, the mystery now runs on the Net for over a week the clocks of Catania, but also other cities of Sicily, seems literally insane. Suddenly begin to run even managing to go 15-20 minutes a day. An unexplained phenomenon that has sparked the curiosity of two computer experts of St Microelectronics, the semiconductor corporation based in Catania. Andrea De Luca and Francesco Nicosia are in some ways even to specialists. And certainly not easily suggestible. Speaking of them have discovered a problem in common, by return, shared on social networks. At that point, the discovery in Sicily are now hundreds of digital clocks that go faster than necessary.

TAM TAM ON FACEBOOK - "How many of you have had problems with alarm clocks, microwave etc?" Asked Francis on Facebook. Are immediately flocked confirmations. "I know I did with the microwave ... the system and it happens again," he says Melina. And Angel: "... me with the radio alarm clock." Paola: 'It's true even my microwave is ahead by about 7 min ... how strange. " Julia, however, had thought he had already solved the problem 'to me has happened with the clock radio, so I changed that yesterday. " While Marilyn was charged everything to his carelessness. "The first time I thought the microwave I had touched me wrong - explain the system with time-Sky and the PC, the next day I find it forward 10 minutes. I'm more careful, the new system and find it later. Now 'is a hard thing for a week, had never done before ... boh will be hot. "

ETNA GUILT? - It 's just the point. What is happening in and around Catania in Sicily? Something like what happened recently in Caronia where televisions, refrigerators, radios suddenly caught fire? In that case even came to fear the presence of aliens who hangs out between the Tyrrhenian coast and the Aeolian Islands. The yellow di Caronia has never been fully resolved, even if it were made of assumptions: the effect of electromagnetic fields to sudden changes in the delivery of current. More or less the same as those made to explain "the mystery of crazy clocks." The people thought the network had also linked to electromagnetic fields Etna, although this would only apply to Catania, while some have even mentioned the effects of solar winds.
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Achair
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vr 10 jun 2011, 15:11

Sorry, ik ben bang dat ik de tijd heb weten te beinvloeden op een negatieve manier telkens als ik van bed af "moet". Al dat gevloek richting mijn wekker doet de tijdstroom geen goed.
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baphomet
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Lid geworden op: za 21 aug 2010, 16:08

vr 10 jun 2011, 20:37

Oke wat de neuk, een van mijn klokjes loopt weer goed, maar zonder dat ik hem versteld heb... gisteravond liep dit klokje nog 4 uur en 40 minuten voor....

:blink:
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Lid geworden op: za 21 aug 2010, 21:27

vr 10 jun 2011, 21:05

[quote=""baphomet" post=34213"]Oke wat de neuk, een van mijn klokjes loopt weer goed, maar zonder dat ik hem versteld heb... gisteravond liep dit klokje nog 4 uur en 40 minuten voor....

:blink:[/quote]

Wat minder roken :P

:yeah:

Ik wacht al een paar dagen of 1 van mijn klokken raar gaat doen maar nee niks, mag weer is niet mee doen :angry:
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za 11 jun 2011, 17:06

Mijn moederbord batterij is ook op.. Aantal wtf momenten mee gehad..
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