Time & Other Concepts

Wait SS! Wait! Let's not be so hasty! This was not a normal "thread fail." It was creative, brief, and funny!

Though we disagree with someone, hopefully we can still appreciate a moment of humor in someone's presentation of material.

So I give a thumbs up to the fail post and to your thread!

WWW

"For context, a femtosecond is to a second, what a second is to about 31.7 million years."

That's something to reflect on.

excellent thread, i have some reading to do..

interestlingly enough, i was just speaking with my gf about bending time, cycles, etc,

signed into glp, and this, as well as another thread about time, were both pinned!!!!! strange, synchronicity!!! read this thread, i must indeed...

thanks sick!!


the other thread i am reffering to is here..

Thread: Timelines Are Converging

I believe there is a grand convergence taking shape. How it would relate to time as modern humans conceive of as time, I do not know. But, when viewing through the prism of how cultures in the past views time...bingo.

ahh cycles and "TIME"

Light effects on circadian rhythm

Light effects on circadian rhythm
From Wikipedia, the free encyclopedia

Numerous organisms maintain inherent individual daily rhythms to biological processes, known as circadian rhythms, that assist the organism in maintaining functional periodicity relative to the 24-hour day/night cycle of the earth. These rhythms are maintained by the individual organisms, but due to variable individuality and environmental pressures, must continually or repeatedly be reset to synch with the natural environmental cycle.[1] In order for this to be accomplished, external factors must play some role in the synchronization, or entrainment, of the internal circadian rhythm with the external environment. Of the various factors that influence this entrainment, light exposure to the eyes is the strongest effecter.[2][3][4]
Contents

1 Demonstrated effects
2 Internal regulators
3 Other factors
4 See also
5 References

[edit] Demonstrated effects

All of the mechanisms of light-effected entrainment are not yet fully known, however numerous studies have demonstrated the effectiveness of light entrainment to the day/night cycle. Studies have shown that:

The timing of exposure to light influences entrainment; as seen on the phase response curve for light for a given species.
In diurnal species, exposure to bright light after wakening advances the circadian rhythm, whereas exposure before sleeping delays the rhythm.[4][5]
The length of exposure influences entrainment.
Longer exposures have a greater effect than shorter exposures.[5]
Consistent exposure has a greater effect than intermittent exposure.[2]
In rats, constant exposure eventually disrupts the cycle to the point that functions like memory and stress coping may be impaired.[6]
Intensity and wavelength of light influence entrainment.
Brighter light is more effective than dim light.[5]
Dim light can effect entrainment relative to darkness.[7]
In humans, low intensity short wavelength (blue/violet) light may be equally effective as high intensity white light.[4]

[edit] Internal regulators

Light's effect on the circadian rhythms of all or most animals has been well documented. However, since circadian rhythms are internal functions, the influence of external factors like light and an individual's sensitivity to them can to some degree be regulated by internal mechanisms.

In zebrafish, evidence of a negative regulation of light-dependent gene transcription has been found. In one study, overabundance of the enzyme catalase reduced the transcription of genes that were dependent on light, whereas inhibition of the enzyme resulted in increased transcription.[3]
Another study found that a deficit of the oligopeptide angiotensin in the brain of laboratory rats resulted in delayed adjustment to changes in the day/night pattern.[8]
Similarly, deficits of TrkB tyrosine kinase in mice, a receptor for brain-derived neurotrophic factor (BDNF), result in a decrease of the ability to entrain to shifts in the day–night cycle.[9]

Internal conditions may thus sway the effectiveness of entrainment to light. All mechanisms behind the process are not yet fully understood.
[edit] Other factors

Although many researchers consider light to be the strongest cue for entrainment, it is by no means the only factor acting on circadian rhythms. Other factors may enhance or decrease the effectiveness of entrainment. For instance, physical activity like exercise when coupled with light exposure results in a somewhat stronger entrainment response.[2] Other factors such as music and administration of the neurohormone melatonin have shown similar effects.[10][11] Numerous other factors affect entrainment as well. These include feeding schedules, temperature, pharmacology, locomotor stimuli, social interaction, sexual stimuli and stress.[12]
[edit] See also

Circadian oscillator
Scotobiology

When we discover Truth, we find that Truth never changes, We find it in ourselves, thus we become Eternal.

I remember studying these aspects in relation to humanistic issues, the teacher would throw us reading material like e.g. circadian rhythm and philosophy, the similarities of stories like cinderella throughout the time and civilizations and the problem of language...it seemed like he was an initiate and it was up to the students to make the connections as that is always the case...

For