![]() ![]() Uvas Canyon Waterfall Loop, Uvas Canyon County Park, Morgan Hill Views along the way of Mount Tamalpais and beautiful rolling valleys are icing on the cake. The moderate trail climbs a wide, sunny fire road then descends on a single-track through a shady forest to the falls. Carson Falls, Marin Municipal Water District, Marin CountyĬarson Falls is a 3.9-mile round-trip hike to a multi-tiered waterfall in the Marin Municipal Water District. Is there even a downside? Well, the hike is extremely popular, and parking is limited to a few pullouts next to the road. Some are simple cascades while others are dramatic fan and horsetail waterfalls. Yet it feels like there is a waterfall every quarter mile-there really are that many. Cataract Falls, Marin Municipal Water District, Marin CountyĬataract Falls is pure waterfall eye-candy and surprisingly steep! Your thighs will get a workout on this 3.0-mile round-trip hike beside Cataract Creek on the northwestern side of Mount Tamalpais. Parking is very limited, with just a few spots on the shoulder of Cascade Drive. Hike 0.25 miles to Cascade Falls at the trail’s end. In 0.5 miles, cross a wooden bridge and turn right onto the Cascade Falls Trail. From the Elliott Nature Preserve trailhead, hike northwest on the single-track High Water Trail, keeping Cascade Creek on your left. What’s that you say? Another Cascade Falls? Yep, this Cascade Falls is a 1.5-mile round-trip hike in gorgeous bay laurel and madrone-studded Cascade Canyon Open Space Preserve. Cascade Falls, Cascade Canyon Open Space Preserve, Fairfax Make it a day-trip with stops at Garrapata State Park and Nepenthe for lunch. ![]() McWay Falls is located in Julia Pfeiffer Burns State Park, 40 miles south of Carmel-by-the-Sea off the Big Sur Coast Highway. The combination of the waterfall, coves, cliffs, and ocean is breathtaking. ![]() The 80-foot tall waterfall flows year-round into McWay Cove with waves from the Pacific Ocean lapping at its heels. The 0.7-mile roundtrip hike to McWay Falls leads to a postcard-perfect view in Big Sur. McWay Falls, Julia Pfeiffer Burns State Park, Big Sur Three Wells, a beautiful three-tiered cascade, will be on your right in 350 feet. To see another waterfall nearby, cross Cascade Drive from the Cascade Park parking lot and pick up an unsigned dirt path heading southeast along Old Mill Creek. It is 2.0 miles round-trip from Old Mill Park to Cascade Falls. There is room for just a few cars in the Cascade Park parking lot, so an alternative is to park at Old Mill Park, and walk up Cascade Drive, a neighborly road with folks out strolling. From the Cascade Park parking lot, head northwest into an airy redwood forest beside Cascade Creek. Cascade Falls, Cascade Park, Mill ValleyĬascade Falls is a family-friendly waterfall hike in a tiny Mill Valley park that is an easy 0.3 miles round-trip. Which ones are your favorites? Hike ’em and let me know. Here are ten fantastic waterfall hikes near San Francisco in order of distance. Remember those waterproof boots for high water, mud, and puddles on trails. If you hike after a series of strong storms, you have a good chance of seeing plumped up falls. It is true that some waterfalls, like Berry Creek Falls, flow year-round however, they are likely to be a trickle in summer as opposed to their full glory in winter.Īnother strategy is to watch the weather and wait for a few good storm systems to move through the area. ![]() So if you are looking to see a waterfall with a strong water flow, a good rule of thumb is to go in winter and early spring when the rainy season is in full swing. Thankfully, the Bay Area is teeming with waterfalls-horsetail falls, fan waterfalls, multi-tiered waterfalls, cascades, and tide falls-all within day-trip distance of San Francisco.īay Area waterfalls are dependent on rainfall as opposed to snowmelt. I don’t know what it is about waterfalls, but they always make me feel happy. ![]()
0 Comments
![]() Rare cases of endometriosis of gastrointestinal tract, bones, vertebra, central nervous system and lungs have been reported. Other areas, which are less commonly involved, include the vagina, cervix, recto-vaginal septum, cecum, ileum, inguinal canal, perineal scars, urinary bladder, ureter and the umbilicus. The most common site of endometriosis is the ovaries with spread to anterior and posterior cul-de sac, broad ligament, fallopian tube, uterosacral ligaments, uterus, fallopian tubes, sigmoid colon, appendix and round ligament. Genetic predisposition, hormones and immunological status is also proposed to have an effect along with new research suggesting a role of environmental exposure to certain agents. Other popular theories include celomic metaplasia, stem cell origin and lymphatic and hematogenous spread. It is proposed that with retrograde menstruation the endometrial glands and stroma are attached and implanted in peritoneal cavity. Suspicion is higher in women presenting with the classical triad of dysmenorrhea, dyschezia (pain during defecation) and dyspareunia.Īlthough the exact pathogenesis is still a subject of research, the most predominant theory is of retrograde menstruation. The final diagnosis requires surgery and histopathology of the lesions, which further delays the management. It is also a diagnostic dilemma for physicians with majority of patients being asymptomatic or presenting with atypical symptoms. 1, 2 Endometriosis is a challenging medical condition with debilitating effects on the life of patients. It affects approximately 6-10% of reproductive age women, however, the reported prevalence is 20–50% in women with infertility and 30–80% in women with pelvic pain. In women who do not respond to medical therapy or have severe symptoms, surgical excision of the endometrial lesions and adhesions is often helpful and offers confirmatory diagnosis by histopathology.Įndometriosis is a chronic medical condition characterized by the presence of endometrial glands and stroma outside the endometrial cavity. With more research on the molecular and biochemical aspects of endometriosis, newer targets of therapy are being developed like selective progesterone receptor modulators, anti-angiogenic factors and immunomodulators. NSAIDs, oral contraceptive pills, GnRH agonists, aromatase inhibitors are some of the commonly used medications. Both hormonal and non-hormonal medical options are available and are tried at first with a goal to control pain and stop the growth of the endometriotic lesions. Treatment includes medical and surgical options. The diagnosis requires a high degree of suspicion and can be only confirmed on histopathology. ![]() The disease is characterized by estrogen dependent growth of the endometrial glands and stroma outside the endometrial cavity. Pelvic pain, dysmenorrhea and infertility are the most common presenting symptoms. Endometriosis is a chronic medical condition that affects around 6–10 % of reproductive age women. ![]() ![]() Product is genuine original from manufacturer authorized distributors. Connectivity 1 x USB - 4 pin USB Type A Movement resolution (DPI) 8000 dpi Buttons 6 Interface USB G203 LIGHTSYNC is ready to play with an 8,000 DPI sensor and customizable, vibrant LIGHTSYNC RGB. Product is sourced and shipped from the European Economic Area (EEA). G Hub is among the best, most intuitive pieces of config software around for mice. Built on over 30 years of Logitech expertise in engineering, building and testing mice, the G203 is designed for extreme performance gameplay and is the perfect gaming mouse for your computer, laptop or Mac. The G203 Lightsync supports Logitech's gaming hardware configuration software, G Hub. Details READY TO PLAY LIGHTSYNC RGB COLOR WAVE GAMING-GRADE SENSOR TRIED AND TRUE DESIGN OPTIMIZED BUTTON TENSIONING LOGITECH G HUB GAMING SOFTWARE PLAY. Choose your lighting from up to 16.8 million colours with LIGHTSYNC RGB. Its easy to setup with Logitech Gaming Software. Gaming-grade extreme performance ensures near-instantaneous response to movements and clicks. Switch between up to 4 sensitivity settings, from pixel-precise 200 DPI for sniping to lightning-fast 8000 DPI. Like Logitech G Pro Gaming Mouse, G203 has a classic design and simple lines inspired by the legendary Logitech G100s Gaming Mouse. suit the sensitivity you like with Logitech G HUB gaming software and cycle easily through. The Logitech G203 Prodigy Gaming Mouse is built around an all-new 8000 DPI sensor with speeds up to 200 IPS. Logitech G203 LIGHTSYNC RGB Gaming Mouse 8,000 DPI (Black). Play to your full potential by being more accurate than you’ve ever been before.
![]() ![]()
![]() It comes in both 32-bit and 64-bit downloads. Previous versions of the OS shouldn't be a problem with Windows 8 and Windows 7 having been tested. SureThing Disc Labeler can be used on a computer running Windows 11 or Windows 10. What version of Windows can SureThing Disc Labeler run on? The SureThing Disc Labeler 6.0 demo is available to all software users as a free download with potential restrictions and is not necessarily the full version of this software. This download is licensed as shareware for the Windows operating system from printer software and can be used as a free trial until the trial period ends (after an unspecified number of days). Not with SureThing Deluxe! We have over 80 different cd label templates alone, including all the most popular brands. With most CD labelers, you are forced to use their exclusive brand of labels. No matter how you slice it, impressive results are on the way! You can even select one of our professionally designed templates to find the right fit for your project. Create your own designs or let our SmartDesigns jump start your project. Read honest and unbiased product reviews from our users. ![]() Whether you%u2019re just getting started or a design professional, you%u2019ve come to the right place to begin creating beautiful CD/DVD labels and case inserts for all your disc projects.īeautiful CD label and cover designs are at your fingertips! Easily coordinate your label and case insert designs, all within a single project. Find helpful customer reviews and review ratings for Surething CD Labeler Deluxe 4.0 at. Compatible with most brands of labels and disc printers.Disc Labeler makes it fun to design your cd covers, disc labels, and case inserts, all from.ĭisc Labeler makes it fun to design your cd covers, disc labels, and case inserts, all from within its easy to use and powerful label design software for Windows. SureThing, the most trusted name in CD/DVD Labeling Software, lets you create beautiful color labels for all your CD's, DVD's, and jewel cases. The most trusted name in CD/DVD Labeling. Simply better than all the competition! Find out why SureThing is the most trusted name in disc labeling. When you purchase the deluxe kit, you'll receive an assortment of CD/DVD labels and jewel case inserts, a label applicator to perfectly center your labels on the disc. You can import playlists from iTunes, Microsoft Media Player, and other popular music players. Intelligent templates, called "SmartDesigns" make label creation fast and easy, while letting you have total control over what each label looks like. SureThing CD Labeler works with all of the popular brands of CD labels and jewel case inserts, including its own SureThing brand, Avery, NEATO, CD Stomper, Memorex, and many more. You can even make collage covers from multiple photos. Use 3-D text effects, circular text, and touchup your photos. Download Advertisement SureThing CD Labeler SureThing, the most trusted name in CD/DVD Labeling software, lets you create, edit, and print beautiful color labels for all your CD's, DVD's, jewel cases, and more. ![]() Scan your own images or import from your collection of digital photos. The best support in the industry for direct-to-disc printers including those from HP, Epson, Canon, Primera, Labelflash and more. Also NEW in this version: You can Alpha-blend text and images to smoothly overlay text and graphics. SureThing was the first dedicated CD/DVD software package to provide LightScribe support. ![]() This exciting new technology uses your LightScribe-enabled CD/DVD drive to create silk-screen quality, iridescent labels burned directly to the disc surface. It adds enhanced support for LightScribe Direct-to-Disc Labeling, the latest technology from HP for labeling discs. The latest version of CD Labeler works is loaded with new features. SureThing CD Labeler Version 3.15 - 15 MB. SureThing for Primo DVD Version 5.0.577 - 15 MB - Windows 7 / 8 / 10 Compatible (32bit/64bit) Download. It makes the entire process so easy that virtually anyone can do it! SureThing CD Labeler has extensive support for music playlists, interfaces with the Internet to get music CD information, and provides you with "intelligent" templates that make label design easy. SureThing for PTPublisher Version 5.2.707.1 - 54 MB - Updated - Windows 7 / 8 / 10 Compatible (32bit/64bit) Download. SureThing, the most trusted name in CD/ DVD Labeling software, lets you create, edit, and print beautiful color labels for all your CD's, DVD's, jewel cases, and more. ![]() ![]() ![]() Why can’t I order Chick-fil-A ® delivery from other third-party delivery services?Ĭhick-fil-A is available for delivery at participating restaurants through our national delivery partners – DoorDash, Uber Eats, Grubhub, and Postmates. We apologize if you are outside of our current delivery radius, but we hope to be able to serve you soon. We are currently testing and exploring delivery services at select restaurants. ![]() Why isn't Chick-fil-A ® available for delivery near me?
![]() ![]() ![]() Mar-Dai Pickens and her team are offering a community cooking class for young locals. flipping once, until dark golden brown on both sides and cooked through (internal temperature of 150F), 8-10 minutes total. Heat oil over medium-high heat until hot, but not smoking. And to give back to the community, the restaurant is adding a spin to this year’s celebration. Bring pork chops to room temperature 30 minutes before cooking. She’ll serve these with “good luck” foods and food that’s significant to the Black diaspora, such as sweet potatoes, black-eyed peas and cabbage. fresh carrots bone-in pork chops red pepper green pepper 1 Packet of Sazon tomato sauce chicken broth olive oil olives (optional) Salt and pepper to taste Step 1 Turn your Instant Pot to Saute and add olive oil, sofrito, and pork chops. Adapted from Daisy Cooks Combine the rub ingredients in a bowl then distribute on the pork chops. Plus, they cook up in less than ten minutes It’s the perfect quick and easy dinner the whole family will love during this busy holiday season This recipe is sponsored by Nestl and their delicious Stouffer’s Macaroni & Cheese. Shreveport’s Vegans on the Run owner Joslin Mar-Dai Pickens plans to commemorate two ways: through strawberry lemonade, and dairy-free red velvet cupcakes. Jump to Recipe These Puerto Rican Fried Pork Chops are juicy, crisp and full of flavor. Because of its good taste, it is known as one of the best rice dishes. It’s not uncommon to see red drinks or desserts at Juneteenth celebrations to commemorate this painful history. Puerto Rican Rice, Pigeon Beans, and Pork Chops Recipe P C 12:31 PM EST Arroz con gandules (rice with pigeon beans) 1 / 2 Traditional Puerto Rican Meal In the Puerto Rican tradition, pigeon ricealso known as arroz con gandules is made with everything. Most scholars say it represents the blood shed by the enslaved Texans who were forcibly migrated to the state and forced to toil in the state’s hot fields under brutal enslavers, while others say the color’s significance can be traced to traditions from West Africa, and reflect practices the enslaved Yoruba and Kongo people brought with them to Texas during enslavement. The color red is deeply significant to Juneteenth. ![]() ![]() We suggest upgrading your web browser to the most recent version of Chrome, Firefox, Safari or similar that is appropriate for your device. yhhhhhh: -hhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh///////+shhhhhhhy+/:-::+yhhhhh//shhhhhhhhh+/ohhhhhy//shhhhhho/+hhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh **REQUEST DENIED - BOT SCANNING OR OLD WEB BROWSER** Explanation: Dufry implements mechanisms to maintain a high level of service on our websites, which can include blocking of old web browsers that are misused by web spiders and scanners. `shhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh` +hhhhhs ohhh` +hhhhho yhhh` +hhhhhhhhh: :hhhs``ohhhhhhhh: -hhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh` :++//- `+hhhho``:+o+/` +hhhh` +hhhhhhhhh: :hhhhs. ///- `ohhhhs``+``ohhhhhhhhhhhhhh hhhhhhhhhhhho.```.-+yhhhhhhhhh` +hhhhhh: -hhy shhhhhy shhh` -/////yhhh. yhhhhhhhh` +hhhhhh: -hhy shhhhhy shhh` -/////yhhh. yhhhy- :yhhhhhhhhhhh hhhhhhhhhhh` +ho:/hy shhhhhhhh` +hhhhhs` ohhy shhhhhy shhh` +hhhhhhhhh: :hhhhhh: -hhh+ `shy. Hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhhhhhh+-:hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh hhhhhhhhhhh////- `////shhhhhhhh///////+syhhhhy//yhhhhhy//yhhh/////////ohh+///////+oyhho//yhhhhhy//ohhhhhhhhhhh hhhhhhhhhhh` :+- `++ ohhhhhhhh` :++//- `+hhhy shhhhhy shhh` :++++++shh. Choose from a variety of trendy and prescription-friendly lens options including crystal, gradient and mirror lenses.REQUEST BLOCKED - BOT SCANNING OR OLD WEB BROWSER While a fashion-forward style of sunglasses, the Cockpit sticks to its roots of pilotsunglasses with teardrop shaped lenses and laser cut metal that ensures a thin and lightweight frame. ![]() These sunglasses have less dominating lenses, which complements most face shapes.Cockpit RB3362 allows you to wear the timeless, classic frame that we all know and love, with an added edge. ![]() Ray-Ban® Cockpit sunglasses contemporize the Aviator Classic with an updated lens size and color options. The RB3362 Ray-Ban Cockpit sunglasses are available with polarized lenses and are prescription friendly. The Ray-Ban signature logo is displayed on both the lens and adjustable nose pads. Ray-Ban RB3362 Cockpit sunglasses take iconic elements from the original Aviator, but are smaller, with less dominant lenses, complimenting for all face shapes. The Ray-Ban Cockpit sunglasses are smaller with less dominant lenses which compliments most face shapes as it shows its own sense of style. The Ray-Ban® RB3362 Cockpit sunglasses take everything that is iconic about the original Aviator™ sunglasses, and takes it to a current, contemporary place. To the extent possible, you have the rights referred to in articles 15-21 GDPR (right to access, right of confirmation, right to be forgotten, right of processing limitation, right of data portability, right to object) and the right to complain to the Supervisor Authority. In case you click screenshot button the Image will be stored on your device and Luxottica will not be able to access it. The Image is processed live and not stored by Us. Your Image will not be communicated to anyone and will not be stored by Luxottica. ![]() The processing of this Image is carried out by Luxottica in order to be able to enable the Virtual Mirror feature and to be able to show you the right fit of the lenses. Luxottica has appointed a Data Protection Officer for all the Group that can be contacted at the address will process your personal data (“Image”) in case you want to use the Virtual Mirror feature on your device. 13 of the EU General Data Protection Regulation 2016/679 (“GDPR”). (hereinafter, “Luxottica” or “We” or “Us”), with registered office at Piazzale Cadorna, 3, 20123, Milano – Italy, directly or through its subsidiaries, processes personal data of the users of the “Virtual Mirror” feature according to art. This policy illustrates how Luxottica Group S.p.A. ![]() ![]() His death was reported by Korean news outlet Yonhap. Moonbin, a member of K-Pop group ASTRO died on April 19, 2023. Springer is survived by his daughter, Katie Springer, and his sister, Evelyn. After the longtime show ended, he started another show Judge Jerry that ran from 2019 to 2022, and his final TV appearance was on The Masked Singer in 2022. The controversial TV show often showed huge brawls on stage while the audience chanted “Jerry, Jerry, Jerry” during the intro. Springer’s daytime talk show The Jerry Springer Show ran for 27 years. “He’s irreplaceable and his loss hurts immensely, but memories of his intellect, heart and humor will live on.” He was diagnosed with pancreatic cancer a few months before his death. “Jerry’s ability to connect with people was at the heart of his success in everything he tried whether that was politics, broadcasting or just joking with people on the street who wanted a photo or a word,” said Jene Galvin, a lifelong friend and spokesman for the family in a statement. ![]() Longtime talk show host Jerry Springer died in his home in Chicago, Illinois on April 27, 2023. During this period of mourning and change, my family and I will be comforted and sustained by our knowledge of the respect and deep affection in which The Queen was so widely held.” I know her loss will be deeply felt throughout the country, the Realms and the Commonwealth, and by countless people around the world. The statement continued, “We mourn profoundly the passing of a cherished Sovereign and a much-loved Mother. “The death of my beloved Mother, Her Majesty The Queen, is a moment of the greatest sadness for me and all members of my family,” the Queen’s son, King Charles III, announced in a statement after her death on September 8, 2022. The celebrity deaths of 2023 come after a year of loss in 2022, which saw the deaths of stars like singer Aaron Carter, actress Angela Lansbury, musician Meat Loaf, athlete Pelé, journalist Barbara Walters, and British royal family monarch Queen Elizabeth II. The celebrity deaths of 2023 include Earth Wind & Fire drummer Fred White and more stars, actors and singers who have passed away this year. He also struggled with addiction to heroin and crystal meth.Rest in peace. Drew.”Īppearing on “Larry King Live” in 2010, Sizemore told the late TV host that he became addicted to cocaine after using the drug for the first time with “a famous actor” when his Hollywood dreams were starting to come true. Sizemore was open about his struggles with drug addiction - once even volunteering to detox on national television by participating in a season of the VH1 reality series, “Celebrity Rehab With Dr. Additionally, he was formerly detained on suspicion of transporting or selling a controlled substance, and he pleaded no contest in 2006 to using methamphetamine outside a Bakersfield motel. and twice on suspicion of battery of a former spouse. He was also arrested once on suspicion of assaulting another girlfriend in downtown L.A. He was found guilty of domestic violence, criminal threats and harassing phone calls. Movies ‘Saving Private Ryan’ at 20: How Spielberg’s vivid D-Day story changed war movies foreverĭuring his trial, Sizemore’s attorneys denied Fleiss’ allegations and accused her of trying to blackmail him. In 2003, he was convicted of abusing his girlfriend, Heidi Fleiss, and served 17 months in jail. Throughout his career, Sizemore was often in the headlines for his run-ins with law enforcement. His final role was as a doctor in the 2022 comedy series “Barbee Rehab.” Sizemore accumulated more than 200 acting credits spanning movies, video games, theater and TV. “I hate this stuff,” Sizemore said as people gathered to congratulate him after the reading. ![]() ![]() During the performance, he adopted the voice of his Black grandfather, who warned him to never reveal his biracial heritage if he wanted to make it in Hollywood. At Los Angeles’ Geffen Playhouse in 2011, he staged a private reading of his one-man show, “I Am Not Sam,” that explored his biracial identity. Outside his film and TV work, Sizemore also dabbled in theater. Sizemore played tough-guy roles throughout the 1990s in films such as “Natural Born Killers,” “Wyatt Earp” and “Heat” and later had a recurring role in the television series “China Beach.” In 2000, he received a Golden Globe nomination for his leading performance as a former mobster on the run in the TV movie “Witness Protection.” He also had a starring role in the high-profile military drama “Black Hawk Down.” ‘Saving Private Ryan’ actor Tom Sizemore is in critical condition, according to his representative, who called his prognosis a ‘wait-and-see situation.’ Entertainment & Arts ‘Saving Private Ryan’ actor Tom Sizemore hospitalized after brain aneurysm ![]() ![]() ![]() Together with his 14 year-old son and Choi, he recently published a paper about some of the possibilities, and also demonstrated simple cloaking with mirrors, like magicians would use, in a brief video." We lost Moody's spare Invisibility Cloak when Sturgis was arrested." - Mad-Eye Moody was in possession of an Invisibility Cloak Howell became interested in creating simple cloaking devices with off-the-shelf materials while working on a holiday project with his children. The same principles could be applied to a truck to allow drivers to see through blind spots on their vehicles. While their device is not quite like Harry Potter’s invisibility cloak, Howell had some thoughts about potential applications, including using cloaking to effectively let a surgeon “look through his hands to what he is actually operating on,” he said. Laser shows the paths that light rays travel through the system, showing regions that can be used for cloaking an object. Setup of the multidirectional `perfect paraxial’ cloak as seen from the side. They use a technique called ABCD matrices that describes how light bends when going through lenses, mirrors, or other optical elements. In a new paper submitted to the journal Optics Express and available on , Howell and Choi provide a mathematical formalism for this type of cloaking that can work for angles up to 15 degrees, or more. Also, the cloak has edge effects, but these can be reduced when sufficiently large lenses are used. He added that they have slightly more complicated designs that solve the problem. This means that the cloaked region is shaped like a doughnut. “This cloak bends light and sends it through the center of the device, so the on-axis region cannot be blocked or cloaked,” said Choi. Their simple configuration improves on other cloaking devices, but it’s not perfect. From a continuous range of viewing angles, the hand remains cloaked, and the grids seen through the device match the background on the wall (about 2 m away), in color, spacing, shifts, and magnification. And, unlike some other devices, it’s broadband so it works for the whole visible spectrum of light, rather than only for specific frequencies.Ī multidirectional `perfect paraxial’ cloak using four lenses. The Rochester Cloak can be scaled up as large as the size of the lenses, allowing fairly large objects to be cloaked. There was no discontinuity in the grid lines behind the cloaked object, compared to the background, and the grid sizes (magnification) matched. As they looked through the lenses and changed their viewing angle by moving from side to side, the grid shifted accordingly as if the cloaking device was not there. To test their device, they placed the cloaked object in front of a grid background. In order to both cloak an object and leave the background undisturbed, the researchers determined the lens type and power needed, as well as the precise distance to separate the four lenses. ![]() Choi added that previous cloaking devices can also cause the background to shift drastically, making it obvious that the cloaking device is present. Many cloaking designs work fine when you look at an object straight on, but if you move your viewpoint even a little, the object becomes visible, explains Howell. “This is the first device that we know of that can do three-dimensional, continuously multidirectional cloaking, which works for transmitting rays in the visible spectrum,” said Choi, a PhD student at Rochester’s Institute of Optics. Forgoing the specialized components, Howell and graduate student Joseph Choi developed a combination of four standard lenses that keeps the object hidden as the viewer moves up to several degrees away from the optimal viewing position. “There’ve been many high tech approaches to cloaking and the basic idea behind these is to take light and have it pass around something as if it isn’t there, often using high-tech or exotic materials,” said John Howell, a professor of physics at the University of Rochester. ![]() |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |