For reasons that become obvious when you look at the back of the watch, it takes the shape of a Chevrolet car grill. (H.H.D.This watch is in terrible shape (a missing hand, missing crystal, worn face), but it has character. Ingestion of the paint occurred as the result of the workers' habit of pointing their brushes in their mouths before painting the dials. The paint used on the watch dials consisted of crystalline phosphorescent zinc sulfate, rendered luminous by the addition of extremely small amounts of radium and mesothorium or radiothorium. The patient was unaware that she had received a harmful dose of radioactivity as a more » result of her occupation as a watch dial painter 30 years earlier. Roentgenograms of the long bones, vertebral bodies, and pelvic bones with destruction of both acetabula demonstrated the characteristic pathological changes resulting from irradiation of bone. Considerable pain and limitation of motion were experienced in spite of medical therapy. The patient had been treated erroneously over a period of years for rheumatoid arthritis involving the shoulder and hip joints. The case history is presented of a 52-year-old female who developed radiation osteitis of multiple bones and an osteogenic sarcoma of the right ilium that proved fatal. The calculated genetic dose for Switzerland is 75 mrem/generation (30 yr), or 2-3% of natural genetic dose. max allowable dose 1.5 rem/ wk), and 0.001 rem/wk at the eye lens (max allowable dose 0.1 rem/ wk). The results were as follows: determination of the nature of radioactive element in watches showed that two contained Sr and all others Ra /sup 226/ amount of radioactivity, as the algebraic mean activity of ordinary watches not containing Sr/sup 90/, was 0.102 mu C of Ra/sup 226/, and the average of watches manafactured in Switzerland in 1960 was 0.092 mu C of Ra/sup 226/ the total dosage was 1 mrem/ hr, that absorbed by the wearer was 0.17 rem/wk at the wrist (cf. Four tests were made on each watch: measurement by a thin-window Geiger-Muller counter of BETA radiation measurement of gamma radiation by means of a NaI-crystal scintillation counter, with a 5% error on highly radioactive watches and more on less active ones measurement of dosage received from the outer back surface of the watch, by a dosimetric film technique, with plus or minus 30% precision classification as legible in the dark or non-legible in the dark, made by more » an observer with watch 20 cm from eyes after 1/2-hr dark adaptation. (tr- auth) « lessĪ study was conducted of 684 Swiss-made watches, approximates 2 of each model, to find the level of radioactivity of their luminous dials. In the cases of watches with maximum activity (more than 2 C Ra) as the doses are cumulative, they can have a harmful effect if the person is exposed at the same time to supplementary irradiation doses (diagnosis and therapy with x rays or radioisotopes). A wrist watch presents no somatic or genetic danger. All these doses are much lower than the permissible dose the gonad doses represent 2 to 7% of the gonad dose of the natural background x radiation. The gonad doses are 6.9 mr/yr for the man's watch of mean activity and 1.5 mr/yr for the woman's watch. The mean dose to the head and eyes is 2.5 r/yr. It was established that the more » mean dose, for carrying the watch 16 hrs a day, was 8 r/yr and, for the watch with the highest activity, 48.3 r/yr. The irradiation doses to different organs caused by the luminous watches were measured on nine persons with film badges. In eight watches the concentration of the radioactive material was more than five times the mean value. The mean concentration of the radioactive material (in 95% of the cases radium salts and mesothorium) was 0.38 C Ra for a man's watch and 0.12 C Ra for a woman's watch. >The BETA and gamma activities of 156 men's and women's watches of different types and brands were measured using a G-M counter and a Nal crystal scintillator.
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Overview (1 of 2) Rezurrection: Pack 4 EN 33,083 Release date: Size: 1.15 GB Description Share this 14. The Call of Duty: Black Ops Rezurrection DLC can now be downloaded from digital distribution services on the PC like Steam, while PlayStation 3 owners can get it off the online PlayStation Store, or right from the in-game DLC section. "The walking dead have infiltrated our combat grounds in four different locations, amassing in the classic maps that started it all: Nacht der Untoten, Verrückt, Shi No Numa and Der Riese." Undead astronauts easily shamble toward their next meal, unaffected by the base's fluctuating gravity." The undead shift in and out of sight, waiting for the perfect opportunity to strike. "Lift off into the ultimate Zombies epic with Call of Duty: Black Ops Rezurrection, and be the first to launch into space for a new dimension of undead action! 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JThe main narrative follows a day in the life of super-shy seventh grader Emmie, who rarely speaks to a soul at school occasional sections follow Katie, super-popular and impossibly perfect (she gets straight As, her parents have never embarrassed her, and everyone wants to be her BFF). A well-executed twist will have readers flipping back to see what they missed while cheering the strides made by Libenson’s no-longer-invisible heroine. Katie rises to her defense, but Emmie eventually learns to speak up for herself, realizing that embarrassment isn’t the end of the world and being social isn’t as impossible as she thought. Emmie and Katie share a crush on classmate Tyler, and when a sappy love note Emmie writes to Tyler as a joke is made public, Emmie is humiliated. Katie’s chapters, by contrast, are big, splashy panels that reflect her outgoing personality (“I’m just your average teenage girl,” she says after being offered movie roles and the crown of homecoming queen). 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You can create a collection of your favorite tracks, which will include not only the tracks you already have but also the new ones, from YouTube. You can create personalized playlists in your YouTube account and then listen to them anytime you wish to. Sync your music between Windows, Mac and iPhone with VOX Cloud Storage Now. If you would like to add a YouTube playlist to your VOX you are very welcome to do that – just copy the URL to VOX and enjoy it in the best quality available.īy the way, do you know that you can synchronize your Windows, Mac and iPhone libraries with the help of VOX Cloud? This infinite music cloud storage which comes as an addition to the VOX music player will make sure that all of your music is stored in the best quality possible and is available on a number of macOS, iOS and Windows devices. You will find your new track in the “Playlist” section.copy its address and paste it using CMD + U,.Using VOX as a YouTube music player is simple: You do not have to choose and repeat the same steps again and again – VOX for Mac will take care of it all for you. Here, at Coppertino, we decided to free you from all this hassle – VOX music player will choose the best quality of sound and the lowest of video and will add this music track to your VOX library. In all the above mentioned options you have to choose the quality you need first and download it to your device and later on to move it to your music player. Then just select a format, wait for a couple of minutes, and the track is yours! You just have to google “download music from YouTube” and chose the website which appeals to you. Also, do not forget that there is a number of websites on the web which will help you to download music from YouTube, usually for free. But this option might be a bit expensive. You could try an app which turns your YouTube into a good old music player, just like Musictube. Of course, you can opt to use a browser extension to download music tracks from YouTube to your music player or to continue using YouTube as if it was a music player. website, which would help you download music files from YouTube.app to turn your YouTube experience into an MP3 music player experience.There are a couple of options you could try for the next step: So, you have found music tracks which you would like to listen to from your music player. How to download tracks from YouTube to your music player Unfortunately, YouTube does not have a feature of offline-playing, so the only way to enjoy its selection of music is to be online. However, to access the website one has to be connected to the Internet. One can stream whichever track they want anytime. So we think that music lovers should also know how they can benefit from such a valuable source.Īre you looking for a YouTube music player? Let us tell you more about getting tracks from YouTube to your music player.Įven though YouTube is not solely a music player due to a variety of clients’ videos, TV-shows, and movies, it can be used as a music and video player. But these days MP3 is one of the most popular music formats, and it can be easier to find MP3 tracks than any other. Yes, we know that these articles are usually intended at musicophiles who prefer to avoid MP3 tracks. Would you like to download some of the music from YouTube? Everybody knows that it is one of the greatest MP3 libraries in the world, besides, quite often one can choose the quality of the music track. Your personal YouTube music player for Mac The angle of incidence is identical to the angle of reflection.It alters the direction of the beam of light, when it falls on the plane, amidst two media, so that the ray goes back to the medium, in which it is generated. In simple terms, reflection implies the rebounding of light, sound, heat or another object back to the source, without absorbing it. Pass through the surface, that changes their speed and direction. Light travels from one medium to another.īounce off the plane and changes direction. Refraction means the shift in direction of the radio waves, when it enters medium with different density. Reflection is described as the reverting back of light or sound waves in the same medium, when it falls on plane. So, take a look at the article to know the difference between reflection and refraction Content: Reflection Vs Refraction Likewise, there is a diverse range of phenomena concerning light that can be explored with the help of a thorough study. as the light rays fall on it, the object reflects light, which when received by our eyes, the object becomes visible. Have you ever wondered, how can we perceive things with eyes? In the daytime, it is the light rays coming from the sun, that help us to see objects, i.e. If there is the absence of light in a room, nothing is visible to us. You can make eye contact with someone else through your mirror reflection because you know, subconsciously, that the law of reflection comes into play whenever you look at a mirror.Our world is full of objects that we can see only with the help of light. It’s very similar to the woman’s image pictured above, and is a very good example of the law of reflection at work in real life.Īlso Read: Why Does The Sun Reflect Off Seas And Oceans? Since your eyes are pointed towards the mirror, how can you make eye contact with someone else? Well, quite simply, because it’s not you, but your mirror reflection that makes eye contact with the person to whom you are talking. You have probably been in the situation countless times when you’re looking at the mirror, but also talking to someone at the same time… while maintaining eye contact! How does that happen? The life and success of a tennis player becomes much easier if they are skilled in those particular predictions.ĭo you notice how the woman’s reflection is looking at the camera, but the lady herself isn’t? (Image Credit: freestockphotos) The reason the tennis example was appropriate is that it shows how important it is, in a game like tennis, to be able to predict how a projectile (i.e., the tennis ball) is going to behave. However, we’re not here to talk about tennis. If you’re not good at tennis, then you might not be very good in this particular department. If you are a tennis player, particularly a good one, you must be quite good at estimating the path that the ball will follow just by looking at the way it was hit by your opponent. It also states that the angle the incident ray makes with the normal is equal to the angle that the reflected ray makes with the normal. The law of reflection (in physics) states that when a light ray is incident on a plane surface, the incident ray, the reflected ray and the “normal” to the surface of the mirror all lie in the same plane. The angle of incidence is the angle at which the ray of light hits the surface, and the angle of reflection is the angle at which the ray of light reflects off the surface. The law of reflection is the principle that when a ray of light hits a surface, the ray of light will reflect off the surface at the same angle as it hit the surface. Angle Of Incidence And Angle Of Reflection. University Airport (KEDU, 7%, 16 mi, west, 43 ft elevation change).Sacramento Mather Airport (KMHR, 14%, 11 mi, east, 72 ft elevation change).Sacramento International Airport (KSMF, 16%, 9 mi, northwest, -3 ft elevation change).Mc Clellan Airfield (KMCC, 22%, 8 mi, northeast, 49 ft elevation change).Sacramento Executive Airport (KSAC, 41%, 5 mi, south, -13 ft elevation change). The stations contributing to this reconstruction are: The estimated value at Sacramento is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Sacramento and a given station. There are 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Sacramento.įor each station, the records are corrected for the elevation difference between that station and Sacramento according to the International Standard Atmosphere, and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations. This report illustrates the typical weather in Sacramento, based on a statistical analysis of historical hourly weather reports and model reconstructions from Januto December 31, 2016. Our beach/pool temperature score is 0 for perceived temperatures below 65☏, rising linearly to 9 for 75☏, to 10 for 82☏, falling linearly to 9 for 90☏, and to 1 for 100☏ or hotter. Our tourism temperature score is 0 for perceived temperatures below 50☏, rising linearly to 9 for 65☏, to 10 for 75☏, falling linearly to 9 for 80☏, and to 1 for 90☏ or hotter. Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more. Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed. The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).įor each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. The coldest month of the year in Sacramento is December, with an average low of 40☏ and high of 55☏.Īverage High and Low Temperature in Sacramento The cool season lasts for 2.9 months, from November 22 to February 18, with an average daily high temperature below 62☏. The hottest month of the year in Sacramento is July, with an average high of 93☏ and low of 60☏. The hot season lasts for 3.7 months, from June 5 to September 26, with an average daily high temperature above 86☏. Click on each chart for more information. 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