Penetration 1
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Penetration 1
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The depth light can penetrate into a material
Penetration depth is a measure of how deep light or any electromagnetic radiation can penetrate into a material. It is defined as the depth at which the intensity of the radiation inside the material falls to 1/e (about 37%) of its original value at (or more properly, just beneath) the surface.
When electromagnetic radiation is incident on the surface of a material, it may be (partly) reflected from that surface and there will be a field containing energy transmitted into the material. This electromagnetic field interacts with the atoms and electrons inside the material. Depending on the nature of the material, the electromagnetic field might travel very far into the material, or may die out very quickly. For a given material, penetration depth will generally be a function of wavelength .
According to Beer–Lambert law , the intensity of an electromagnetic wave inside a material falls off exponentially from the surface as
If
δ
p
{\displaystyle \delta _{p}}
denotes the penetration depth, we have
Penetration depth is one term that describes the decay of electromagnetic waves inside of a material. The above definition refers to the depth
δ
p
{\displaystyle \delta _{p}}
at which the intensity or power of the field decays to 1/e of its surface value. In many contexts one is concentrating on the field quantities themselves: the electric and magnetic fields in the case of electromagnetic waves. Since the power of a wave in a particular medium is proportional to the square of a field quantity, one may speak of a penetration depth at which the magnitude of the electric (or magnetic) field has decayed to 1/e of its surface value, and at which point the power of the wave has thereby decreased to
1
/
e
2
{\displaystyle 1/e^{2}}
or about 13% of its surface value:
Note that
δ
e
{\displaystyle \delta _{e}}
is identical to the skin depth , the latter term usually applying to metals in reference to the decay of electrical currents (which follow the decay in the electric or magnetic field due to a plane wave incident on a bulk conductor). The attenuation constant
α
/
2
{\displaystyle \alpha /2}
is also identical to the (negative) real part of the propagation constant , which may also be referred to as
α
{\displaystyle \alpha }
using a notation inconsistent with the above use. When referencing a source one must always be careful to note whether a number such as
α
{\displaystyle \alpha }
or
δ
{\displaystyle \delta }
refers to the decay of the field itself, or of the intensity (power) associated with that field. It can also be ambiguous as to whether a positive number describes attenuation (reduction of the field) or gain ; this is usually obvious from the context.
The attenuation constant for an electromagnetic wave at normal incidence on a material is also proportional to the imaginary part of the material's refractive index n . Using the above definition of
α
{\displaystyle \alpha }
(based on intensity) the following relationship holds:
where
n
~
{\displaystyle {\tilde {n}}}
denotes the complex index of refraction ,
ω
{\displaystyle \omega }
is the radian frequency of the radiation, c is the speed of light in vacuum and
λ
{\displaystyle \lambda }
is the wavelength. Note that
n
~
(
ω
)
{\displaystyle {\tilde {n}}(\omega )}
is very much a function of frequency, as is its imaginary part which is often not mentioned (it is essentially zero for transparent dielectrics). The complex refractive index of metals is also infrequently mentioned but has the same significance, leading to a penetration depth (or skin depth
δ
e
{\displaystyle \delta _{e}}
) accurately given by a formula which is valid up to microwave frequencies.
Relationships between these and other ways of specifying the decay of an electromagnetic field can be expressed by mathematical descriptions of opacity .
This is only specifying the decay of the field which may be due to absorption of the electromagnetic energy in a lossy medium or may simply describe the penetration of the field in a medium where no loss occurs (or a combination of the two). For instance, a hypothetical substance may have a complex index of refraction
n
~
=
1
+
.01
j
{\displaystyle {\tilde {n}}=1+.01j}
. A wave will enter that medium without significant reflection and will be totally absorbed in the medium with a penetration depth (in field strength) of
δ
e
≈
16
λ
{\displaystyle \delta _{e}\approx 16\lambda }
, where
λ
{\displaystyle \lambda }
is the vacuum wavelength. A different hypothetical material with a complex index of refraction
n
~
=
0
+
.01
j
{\displaystyle {\tilde {n}}=0+.01j}
will also have a penetration depth of 16 wavelengths, however in this case the wave will be perfectly reflected from the material! No actual absorption of the radiation takes place, however the electric and magnetic fields extend well into the substance. In either case the penetration depth is found directly from the imaginary part of the material's refractive index as is detailed above.
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Helen suffers from a psychotic dread of penetrative sex; her lovers are 'consumed' by a 'vaginal monster' that leaves only their clothes behind. Fleeing to London, she does well picking off ... Read all Helen suffers from a psychotic dread of penetrative sex; her lovers are 'consumed' by a 'vaginal monster' that leaves only their clothes behind. Fleeing to London, she does well picking off sleazy punters until virginal Dennis finds her. Helen suffers from a psychotic dread of penetrative sex; her lovers are 'consumed' by a 'vaginal monster' that leaves only their clothes behind. Fleeing to London, she does well picking off sleazy punters until virginal Dennis finds her.
Wolfgang Büld : Helen's new father-in-law.
Tight Rope Written by Marco Coti Zelati , Cristina Scabbia , Andrea Ferro Performed by Lacuna Coil Courtesy of Century Media Records
Completely stupid - but fun enough - black comedy thriller
I saw director Wolfgang Büld's 'Twisted Sisters' not too long ago, and thought it was a decent little twisted flick. This earlier film, however, makes Twisted Sisters look like The Sound of Music - as they don't get much weirder and completely nonsensical than Penetration Angst! The plot obviously takes its main plot point from the idea of a woman's anxiety when it comes to having sex for the first time. It could be said that this is a 'feminist' film, although personally I very much doubt that was on the director's mind...even if he does seem to have a thing men faring badly when it comes to sex (judging by the two films I've seen from him). The plot focuses on a young lady named Helen. Helen is raped one night in a car, and is surprised when her attacker disappears! It soon transpires that he has, in fact, disappeared into her; and Helen then finds herself with an insatiable thirst for men. Meanwhile, a man named Dennis, whom Helen knows, begins dating a Siamese twin...a love story with disastrous consequences. If there's one thing that can definitely be said about this film, it's that it makes you think about things you'd never normally think about! The thought of the implications and logistics of having sex with Siamese twins never entered my head before seeing this film! There's a heavy dose of humour, and the director seems to really enjoy throwing in a barrage of ridiculous ideas. The acting is mostly atrocious, and the dubbing is even worse; but clearly the star of the show is the plot, which is always enough of a distraction. As if a (literally) hungry vagina isn't enough of a silly reason for a film; the other plot line, while somewhat more possible, is no less stupid! There are a couple of decent scenes in the movie, and one of them involves Siamese twins and an electric knife! The film isn't really all that gory, but there's plenty of slutty women and whatnot. It all boils down to a conclusion that (somehow) manages to bring everything together, and while this is the sort of film that will very much divide opinion; I'd recommend it to anyone that doesn't mind incoherency and ridiculousness so long as there's fun to be had.
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In this article, we will see which are the best top sex positions while having sex to get deeper penetration. Read facts to have a better sexual life.
Deep Penetration During Sex. Shutterstock Images.
By Michael Wight Reviewed by CHD Expert Team
Updated: 2021, May 22
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While sex can be very fun, it can also be disappointing if the man is unable to please his lady in the bedroom. There are many reasons why a man may not be able to deliver an adequate level of satisfaction to a woman during sex. When the man suffers from sexual disorders like erectile dysfunction , for example, he may not be able to gain an erection that is firm enough to please his lady. Premature ejaculation could make the sex end too soon, leaving the woman unsatisfied while the man did reach orgasm. These are only two examples of many problems that a couple can face when it comes to making sex pleasurable.
In addition to sexual dysfunctions, some men may have a penis that is not big enough to deliver a deep enough penetration to satisfy his woman, or, in some cases, the couple could simply not be participating in the right sex positions in order to deliver deep penetration and, at the same time, a higher level of satisfaction to both partners. In this post, we’ll share some of the most effective methods for deep penetration during sex – including some sex positions that you might not have thought of before.
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With deep penetration being such an excellent method for improving sex and satisfaction during sex, we’ve decided to compile a list of the best sex positions that will help men penetrate their partners deeper than they have ever been able to do before – these positions are also great for men with somewhat small penises as it will ensure they are able to penetrate their partners properly.
Let’s start with a very popular position that is often recommended to people who feel that the man is unable to penetrate the woman deep enough for adequate satisfaction amongst both partners – the deep stick sex position. Fckme.org explains that this position is similar to the deep impact and the deck chair position. The woman’s legs go over her shoulders and then the man can “do his thing”.
The fan is another great sex position for deeper penetration and is the perfect position for stimulating the vagina’s front walls. Additionally, this particular sex position is also good for hitting a woman’s G-Spot, which will make her much more likely to have an orgasm during sex. The fan is also a good sex position for men who are not particularly “blessed” down under.
The splitting bamboo requires the woman to lie down on her back with one of her legs in the air. The man then gets in between her legs and penetrates her. This position also allows for much deeper penetration than many other sex positions and is good for men with big or small penises. To make the position even more pleasurable, the man should try to live the woman’s leg a little more upwards while penetrating her.
The reverse cowgirl is probably one of the most popular experimental sex positions amongst many couples, and, even though it is not particularly known as a deep penetrating sex position, it does allow for a very deep penetration during sex. This particular sex position is also great for stimulation of the clitoris and is also good for women who find it difficult to reach orgasm during sex.
The Bandoleer is quite popular amongst women who would like to add a new level of satisfaction to the stimulation they receive from their male partner. The bandoleer is done in an experimental position with the woman on her back with bent legs. The man then relaxes his arms on the woman’s legs while penetrating her.
*All individuals are unique. Your results can and will vary.
The slide is a very simple sex position that is based on the age-old traditional sex positions that couples have been practicing for many years. This position requires the man to lay down on his back, then the woman lies on top of the man. During penetration, the woman would then rub up and down against the man’s body.
Another experimental and “kinky” sex position allows for deeper penetration than many other sex positions. This particular sex position is also very good for any man with a relatively small penis, as it allows them to really “get in there”. The woman lies on her stomach, places her weight on her forearms, and stretches one leg backward. The man then enters her from behind.
The deckchair is a sex position that focuses on a deeper level of penetration by the man, as well as a higher level of satisfaction for the woman. The man leans backward, while the women lie down on her back. The man then enters her from a sitting position thus penetrating the woman’s vagina in different areas for the ultimate level of satisfaction.
The crossed keys is also a very simple position that is based on many other sex positions, yet offers an immense level of satisfaction to both partners involved in the sexual act. The woman lies down on her back and the man remains in a stand-up position. The woman’s legs will be in the air during penetration in a crossed position.
The hero is a sex position that is often utilized by a woman who finds they are unable to easily reach orgasm, even with continuous sexual penetration. With this position, the woman lies on her back with her legs in the hair, slightly bent in toward her body. The man would then get in behind her. A pillow is placed underneath the woman’s buttocks to allow for deeper penetration.
Finally, we have to mention the hound, a modified version of the age-old “doggy style”, a very experimental position that has become quite popular i
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