Over the past two decades, advanced technologies and space missions have completely transformed our understanding of potential life beyond Earth. The resulting field, astrobiology, has become a multidisciplinary scientific discipline, encompassing many of the natural sciences and having implications for many areas of research. This book presents an introduction and overview of astrobiology. It deals with a wide range of fields, from the search for signs of life on planets in our solar system, to the discovery of exoplanets in distant solar systems and assessing the potential for life there. The book is based on the course of the same name that the author taught for more than two decades at the Hebrew University, and the course recorded on YouTube in the Cornerstones program , which has accumulated tens of thousands of views. The book is accessible not only to students of natural sciences, but to any reader who wants to learn about and understand the fascinating possibilities of life on other worlds.

Islamic Enlightenment in a Radical Age opens a window to trends of innovation and openness in modern Islam in the mid-twentieth century, a period marked by decolonization, the rise of centralized regimes, and the emergence of Jihad organizations. Important agents in the development of the reformist discourse were Mustafa al-Saba'i and the "Muslim Brotherhood" in Syria from 1946 to 1964. Under al-Saba'i's leadership, the Muslim Brotherhood strove to establish an Islamic Enlightenment that sought to elevate the stature of believers and integrate them into the wider world, while preserving their indigenous identity. Al-Saba'i's rich intellectual and public work has been neglected in the scholarly literature, and this book brings him to the forefront and does him historical and historiographical justice. Al-Saba'i called for the revival of the heritage of Islam and its connection to universal values ​​of freedom and justice, humanism and brotherhood, democracy and nationalism. He served as a voice for the voiceless in society through a commitment to public education, social legislation, and support for women's rights, subject to moral reservations. By promoting a dynamic version of Islam—attentive and responsive to key issues on the public agenda—Al-Saba'i and his movement contributed to preserving the diversity of Islamic thought in an era of puritanism, radicalization, and violence.

Muslim beliefs have inspired charitable giving for over fourteen centuries, yet Islamic history has rarely been examined from this perspective. In Charity in Islamic Societies , Amy Singer explains the basic concepts and institutions of Muslim charity: the obligatory annual payment of zakat together with voluntary donations of all sizes, undertaken at every level of society, and across the span of individual lifetimes. Charitable endowments – established by rulers, wealthy individuals, and even those of more modest means – shaped Muslim societies, cultures, and landscapes in ever era. This book demonstrates how historical circumstances, social status, gender, age, and other factors interacted with religious ideals to produce a vast array of charitable practices, from the early days of Islam to the present. Relying on evidence from written texts, buildings, images, and objects to anchor the discussions in each chapter, the author explores the motivations for charity, its impact on the rich and the poor, and the politicization of giving, arguing that the study of philanthropy affords a unique prism through which to examine the past.

If a large rock had collapsed in a desert or a tree had fallen in the heart of a distant forest several hundred miles away from living beings, would it have made a sound upon its fall? Different people will give different answers to this ancient question. Objectively, some will say that a sound would have been heard because sound does not exist only in the mind of the listener. Subjectively, some would say that a sound requires someone to listen to it. What is correct? Is this complex answer related to the essence of sound? It's All in the Sound investigates the phenomenon of sound and tries to understand it and answer, among other things, the above questions. It was written to meet the needs of students and teachers, with a desire to update the teaching of physics and fill the shortage of textbooks in this field, which is associated with teaching the subject of sound waves. The gradual development of the concept of sound is discussed in the book by building structured experimental illustrations, as well as mathematical expressions describing this miraculous phenomenon. The illustrations were chosen so that a curious reader could repeat most of the experiments in a home environment without the need for special laboratory equipment. Even for readers unfamiliar with the basics of physical mathematics that describe sound, this book may provide a unique experience and open up a new window to understanding physics.

Sabbatian Songs of Faith: Ritual, Community, and Interreligious Encounters in the Late Ottoman Empire unveils the hidden world of the Ma’aminim—followers of the 17th-century Jewish messianic figure, Sabbatai Tzvi. After Tzvi’s dramatic conversion to Islam in 1666, many of his followers returned to mainstream Judaism. However, a dedicated group followed in his footsteps, converted to Islam, and established a new path, blending Sabbatian, Jewish, and Islamic elements within a distinct Ottoman-Sephardi cultural framework. For centuries, the Ma’aminim maintained secrecy, forming distinct communities (known as the Dönme) and playing a multifaceted role in Jewish and Ottoman histories. This book sheds new light on their social life and esoteric traditions through a comprehensive, interdisciplinary analysis of previously mostly unexamined mystical manuscripts in Ladino, Hebrew, and Ottoman Turkish. It explores their sacred songs, radical theology, rituals, folklore, and musical practices as reflections of communal reality and developments. By placing the Ma’aminim within a broader historical and cross-cultural perspective, Sabbatian Songs of Faith offers fresh insights into religious transformation, intercommunal exchanges, and the interplay between faith, ritual, and popular culture in the late Ottoman world and beyond.

The New Arabic-Hebrew Dictionary is a comprehensive reference of the Arabic language throughout history, with a focus on its use in spoken and written media. Given Arabic's rich literary tradition spanning over 1,400 years, the language naturally incorporates words and expressions rooted in ancient literary strata, including the Qur'an, classical poetry, proverbs, the Hadith, jurisprudential literature, Adab literature, and historical texts. Terms and expressions from the realm of Islamic theology and jurisprudence, which were considered archaic 50 or 60 years ago, have regained prominence with the rise of fundamentalist Islam in the 1970s. This dictionary offers translations and explanations for these terms as well. After publishing the full dictionary in a large, 700-page edition, we decided it would be useful to publish a more concise version—smaller, portable, and easier to handle. This edition differs from the full dictionary in that it omits examples and comments, as well as archaic entries from ancient poetry, the Hadith, and jurisprudential literature. To the full edition of The New Arabic-Hebrew Dictionary

Mithabrim: Syntax for Higher Levels is a practice, comprehension and expression booklet on syntax topics. The booklet is intended for advanced students according to the curriculum of the Hebrew Teaching Unit at the Hebrew University of Jerusalem. The booklet has two purposes. The first of which is the acquisition and practice of syntactic components and structures at the advanced levels. The topics are practiced in several ways: open exercises, closed exercises, conversions, rewrites. Some of the grammatical topics are preceded by a short grammatical explanation for that section, and at the end of the booklet there are tables related to the syntactic topics as well as solutions to the closed exercises. The second goal of Mithabrim is to cultivate students' comprehension and expression skills with the help of reading passages (essays, articles, etc.). The reading sections, which incorporate the new syntactic topic, deal with different and diverse contents. This is the infrastructure for the activity of reading comprehension and the activity of oral or written expression. For each section, both comprehension questions that relate to the content of the section and expression questions that encourage discussion and conversation on the topic have been added.

A New Orient is an in-depth historical study on the history of Zionist and Israeli Oriental Studies, particularly the study of Arabic, Islam, and Middle Eastern history, as a field of knowledge rooted in 19th and early 20th century German universities. Most of its founders in Israel were German-Jewish scholars who emerged from the Central European Orientalist tradition, and introduced this field of knowledge to the Hebrew University of Jerusalem – and subsequently to the entire Israeli academic system. Through the analysis of rich archival documentation, the book outlines the complex process of migrating Orientalist knowledge. It focuses on what happened to the research and the researchers themselves when their encounter with the Orient shifted from a textual-philological one, following the traditions of German academia, to an actual encounter, fraught with contradictions and tensions, against the backdrop of the intensifying Arab-Jewish conflict. The book sheds new light on the development of academic research as a whole in Mandate Palestine and the early years of Israel, serving as a rich case study for analyzing the complex relationship between 'pure' scientific work and political, social, and cultural issues. It also offers a new perspective on the roots of the Arab-Jewish conflict and the role scientific knowledge played in shaping it. The book won the Mordechai Ish Shalom Prize for a debut book in the history of the Land of Israel in 2025, and the book received commendation from the Shazar (2024) and Am Veolam (2025) award committees.

The book contains the first-ever Hebrew translation of a collection of medieval Arabic stories, entitled The Hundred and One Nights . The chapters of the book deal with a variety of issues, for instance, the work’s origins and history, extant versions and manuscripts, language, material culture, poetics, the ideas and themes reflected in the stories, and Jewish background elements that can occasionally be discerned in some of the stories.

In his two masterworks, Mishneh Torah and The Guide for the Perplexed , Maimonides explicitly articulates a dual crisis: the disintegration of the Halakhic tradition and the erosion of the esoteric knowledge of the Torah. This study presents a novel interpretation of Maimonides’ crisis proclamations and the narratives linked to them. It primarily analyzes how Maimonides crafted a discourse of crisis, illuminating this through a comparison with earlier discourses in the Jewish canon and parallel crisis narratives in Islamic sources. The key question it seeks to answer is: why did Maimonides prominently employ this discourse in his works? The exploration of crisis discourse in Maimonides’ work reveals how he introduces a marked internal tension in each of his two major works. On the one hand, he declares his commitment to both the halakhic tradition and the esoteric knowledge tradition, even as he retrospectively reshapes them. On the other hand, he emphasizes the urgent need for reforming these traditions to confront the rupture they have undergone. This study demonstrates that in both Mishneh Torah and The Guide for the Perplexed , Maimonides portrays the process of breaking and refashioning tradition as an act of loyalty to these traditions during a time of crisis.

This book is part of the series of textbooks for electrical engineers by Dima Budansky. The series is intended for students studying electrical engineering according to the curriculum of the Israeli Ministry of Economy. The author of the book has rich experience of thirty years in teaching and working as an electrical engineer with an electrician engineer license in the fields of planning, execution, and maintenance of electrical installations. The first part of the book describes and details the execution stages of a final project in electrical engineering studies. The second part is a sample project, carried out by students. In the appendices section, technical data sheets of electrical equipment are presented. More in this series by Dima Budansky: Electrical Structures and Power Systems - Theory and Exam Solutions Electric Machines and Drives - Theory and Exam Solutions High Voltage Installations - Principles, Equipment, Operation and Safety