Service
(function () {
function textOf(el) {
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var match = window.location.search.match(/[?&]item=(\d+)/);
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return window.location.origin + "/a-" + match[1] + "/";
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return Promise.resolve(null);
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return new Promise(function (resolve, reject) {
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xhr.open("GET", url, true);
xhr.onload = function () {
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reject(new Error("item page " + xhr.status));
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var doc = new DOMParser().parseFromString(xhr.responseText, "text/html");
resolve(doc.querySelector(".phywe-item-accordion"));
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xhr.onerror = function () {
reject(new Error("item page network error"));
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xhr.send();
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name: textOf(nameLink || cols[0]),
mappedTo: textOf(numberLink)
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items.push(item);
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return items;
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function fillTable(tableId, items, withQuantity) {
var table = document.getElementById(tableId);
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return;
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for (var i = 0; i < items.length; i++) {
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nameTd.style.width = "80%";
nameTd.textContent = items[i].name;
tr.appendChild(nameTd);
var numberTd = document.createElement("td");
numberTd.textContent = items[i].mappedTo;
tr.appendChild(numberTd);
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var qtyTd = document.createElement("td");
qtyTd.textContent = items[i].quantity || "";
tr.appendChild(qtyTd);
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tbody.appendChild(tr);
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while (wrapper && wrapper.className.indexOf("printtablediv") === -1) {
wrapper = wrapper.parentElement;
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return [];
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var items = [];
for (var i = 0; i < rows.length; i++) {
var cols = rows[i].children;
if (!cols.length) {
continue;
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var nameLink = cols[0].querySelector("a");
var fileLink = cols[1] ? cols[1].querySelector("a") : null;
var item = {
name: textOf(nameLink || cols[0]),
mappedTo: textOf(fileLink || cols[1]),
quantity: cols[2] ? textOf(cols[2]) : ""
};
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items.push(item);
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return items;
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function fillFromAccordion(accordion) {
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return;
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setHeadline("print-versuche", stepTitle(versucheStep));
fillTable("print-versuche", versuche, false);
var lieferumfangStep = accordion.querySelector('[data-step="lieferumfang"]');
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fillTable("print-lieferumfang", lieferumfang, true);
var zubehoer = accordion.querySelector('[data-step="zubehoer"]');
var sections = zubehoer ? zubehoer.querySelectorAll(".card-body") : [];
var notwendig = [];
var empfohlen = [];
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var items = parseItemBlocks(sections[i], false);
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notwendig = items;
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empfohlen = items;
}
}
fillTable("print-zubehoer-notwendig", notwendig, false);
fillTable("print-zubehoer-empfohlen", empfohlen, false);
var mediaStep = accordion.querySelector('[data-step="media"]');
var media = parseMedia(mediaStep);
setHeadline("print-media", stepTitle(mediaStep));
fillTable("print-media", media, true);
}
function start() {
var itemUrl = resolveItemUrl();
if (!itemUrl) {
setTimeout(function () {
window.print();
}, 2000);
return;
}
loadAccordion()
.then(function (accordion) {
fillFromAccordion(accordion);
})
.catch(function (err) {
if (window.console && console.warn) {
console.warn("Accordion konnte nicht geladen werden:", resolveItemUrl(), err);
}
})
.then(function () {
setTimeout(function () {
window.print();
}, 500);
});
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", start);
} else {
start();
}
})();
Technical data Polarisation by filters with laserArticle no: P1196801 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
Principle During the investigations an interference the students should
have understood that certain optical phenomena can only be
explained by the fact that Iight has wave properties. Now we must
investigate the nature of these Iight waves, i.e., whether they are
longitudinal or transverse. Benefits
Tasks Direct a beam of light through two polarization filters and investigate what happens when these are rotated at right angles to each other.
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PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com
