{"id":172287,"date":"2016-07-18T09:26:34","date_gmt":"2016-07-18T07:26:34","guid":{"rendered":"http:\/\/mybroadband.co.za\/news\/?p=172287"},"modified":"2016-07-18T09:28:36","modified_gmt":"2016-07-18T07:28:36","slug":"invisibility-cloak-one-step-closer","status":"publish","type":"post","link":"https:\/\/mybroadband.co.za\/news\/science\/172287-invisibility-cloak-one-step-closer.html","title":{"rendered":"Invisibility cloak one step closer"},"content":{"rendered":"

Researchers from QMUL\u2019s School of Electronic Engineering and Computer Science have\u00a0demonstrated a practical cloaking device<\/strong><\/a> that allows curved surfaces to appear flat to electromagnetic waves.<\/p>\n

While the research might not lead to an\u00a0invisibility cloak, it\u00a0could result in a step-change in how antennas are tethered to their platform.<\/p>\n

It could allow for antennas in different shapes and sizes to be attached in awkward places.<\/p>\n

\u201cThe design is based upon transformation optics, a concept behind the idea of the invisibility cloak,\u201d said Professor Yang Hao.<\/p>\n

The researchers coated a curved surface, similar to the size of a tennis ball, with a nanocomposite medium.\u00a0The effect is to cloak the object.<\/p>\n

The design approach has much wider applications, ranging from microwave to optics for the control of any kind of electromagnetic surface waves.<\/p>\n

\n

The picture below shows the cloak not in use: the presence of the object along the path of the traveling wave drastically changes its electric field configuration.<\/p>\n

\"Cloak<\/a><\/p>\n

\n

The picture below shows\u00a0where the cloak is in action and the graded-index nanocomposite has been applied. There is a noticeable improvement in the reconstruction of wave fronts.<\/p>\n

\"Cloak<\/a><\/p>\n

\n

More on science<\/h3>\n

5 human spaceflight missions coming soon<\/strong><\/a><\/p>\n

The best Nasa pictures this year<\/a><\/strong><\/p>\n

NASA wants more astronauts<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Scientists have made an object disappear by using a material with nano-size particles that enhances specific properties on the object\u2019s surface.<\/p>\n","protected":false},"author":23,"featured_media":110574,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_sma_x_autopost_status":"idle","_sma_x_autopost_error":"","_sma_x_post_id":"","_sma_facebook_post_id":"","_sma_instagram_post_id":"","_sma_threads_post_id":"","_sma_x_attempts":0,"footnotes":""},"categories":[31750],"tags":[36,38091],"class_list":["post-172287","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-science","tag-active","tag-invisibility-cloak"],"_links":{"self":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/172287"}],"collection":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/users\/23"}],"replies":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/comments?post=172287"}],"version-history":[{"count":2,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/172287\/revisions"}],"predecessor-version":[{"id":172315,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/posts\/172287\/revisions\/172315"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media\/110574"}],"wp:attachment":[{"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/media?parent=172287"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/categories?post=172287"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mybroadband.co.za\/news\/wp-json\/wp\/v2\/tags?post=172287"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}