You are here:
- Home
- Religion/Spirituality
- Judaism
- Orthodox Judaism
Orthodox Judaism/Questions Answered by Expert Rabbi Ari Enkin
| Subject | Date Asked |
| apparel | 11/26/2011 |
| Q: In the books of Moses it is stated that it is an abomination to G-d for a man to wear women's ... A: Pat, shalom! Indeed, according to Torah law a man is forbidden to imitate a woman and vice-versa. ... | |
| Observing Shabbes | 10/1/2011 |
| Q: Sholem aleichem my name is Avi, I'm Jewish and trying to keep and observe the laws as far as I can, ... A: Avi, shalom! I'm so happy to hear your story and how you are trying to keep mitzvot the best you ... | |
| pet food | 8/24/2011 |
| Q: Can you tell me where does it mention that you are allowed to feed a dog pork (maybe in gemara? or ... A: Marc, shalom! The prohibition to derive any benefit from milk and meat mixtures only applies to ... | |
| Exodus | 7/24/2011 |
| Q: I watched a program today on the Exodus out of Egypt. I alway's assumed the Exodus was a proven ... A: Murel, shalom! Indeed, there is no archaeological evidence the the Exodus ever happened. However, ... | |
| Jewish name? | 6/12/2011 |
| Q: I am a teacher in middle schools and sometimes I am asked by a student "is that a Jewish name?" ... A: David, shalom! There is certainly a category of names that are of Jewish origin, such as Goldberg, ... | |
| Your Book on Machiach | 3/14/2011 |
| Q: Shalom Rabbi Enkin I need to find a copy of your book on Machiach. It appears that I lost the copy ... A: Shira, shalom! I am not sure what you are talking about!!? I never wrote a book on Mashiach. I did ... | |
| Messiah and Sabbath | 12/28/2010 |
| Q: I have been reading Elie Wiesel's "The Town Beyond the Wall", and in the first part of the book, ... A: Leanna- We believe that in the Messianic era every day will have the same joy, comfort, and ... | |
| Stoning | 11/12/2010 |
| Q: Stoning was permitted,even commanded for certain offenses according to the Mosaic Law. Why stoning? ... A: Joel- Its a good question, but the reality is that the 4 methods of capital punishment used in the ... | |
| Temple | 11/11/2010 |
| Q: Is there a verse which states that sacrifices must and only be performed in the Temple at Jerusalem. ... A: Once the Temple was constructed it was forbidden to offer sacrifices outside the Temple. Before it ... | |
| the Bible | 11/2/2010 |
| Q: 2)which says " A bastard shall not enter into the congregation of the LORD; even to his tenth ... A: Joe- This passage refers to one born out of an Adulterous relationship. Adultery is defined as a ... | |
| The Bible | 10/25/2010 |
| Q: does the bible teach that if you wish somthing nad to happen to someone else it will automatically ... A: I think you might be referring to the Talmudic teaching that "He who prays for his fellowman, while ... | |
| conatmination | 8/16/2010 |
| Q: i've touched a dead ladybug. according to the old written law, have i become contaminated?? (i ... A: There is no concern for contamination or impurity of this sort in Jewish law today. In ancient ... | |
| hilchos gittin | 7/6/2010 |
| Q: I was told that the 'Get'of a women divorced because of adultery has a special feature. The ... A: This is untrue, from the perspective of hilchos gittin, at least. It might just be that if an ... | |
| G-D in one's dreams | 7/1/2010 |
| Q: Shalom, Can G-d visit someone in a dream today? Also I feel that my dreams guide me, sometimes I ... A: I am attaching the chapter on dreams from my book, "Dalet Amot". I hope it helps! Regards, Rabbi ... | |
| talking to the dead... | 6/16/2010 |
| Q: the torah prohibits talking to spirits or going into the presence of people who do- but i'm not sure ... A: You can take comfort in what the Rambam has to say on the issue: “Belief in astrology, sorcery, ... | |
| ants | 6/8/2010 |
| Q: is it kosher to eat ants? apparently there's ants in my medicine. A: Eating bugs is a serious transgression of the Torah. It is only permitted under life-threatening ... | |
| Jewish hats | 5/17/2010 |
| Q: I recently moved to Lakewood, New Jersey from Illinois. There is a massive Jewish (Orthodox and ... A: Robin- I am sure that any hat store, including the closest store which sells hats to orthodox Jew, ... | |
| Jewish hats | 5/17/2010 |
| Q: I recently moved to Lakewood, New Jersey from Illinois. There is a massive Jewish (Orthodox and ... A: Great questions and great observations! Orthodox Jewish men keep their heads covered at all times. ... | |
| marriage | 5/6/2010 |
| Q: i was wondering if arranged marriage is the norm in judaism? i saw a movie called "keeping the ... A: Allow me to begin with your last point, first: There is no prohibition on discussing sex with ... | |
| coveting | 4/19/2010 |
| Q: what is the general jewish consensus on what it means to covet? A: Peter- The last of the Ten Commandments is the prohibition of "lo tachmod" - not to covet ... | |
| Pesach Seder Ideas | 3/25/2010 |
| Q: My husband and I are hosting our first seder, which will be for his family, who is not religious at ... A: For starters -- here is a treasury of activities you can do with the kids at the Seder, and by ... | |
| Left and Right hand | 2/25/2010 |
| Q: Shalom Rabbi. I was wondering is it true that the left hand is used for washing and the right for ... A: In Jewish tradition the right hand, and in fact, the right side of the body, is always given ... | |
| hebrew name | 1/31/2010 |
| Q: Rabbi, My name is Gabriela and i don't know if i have a hebrew name. Are your parents suposed to ... A: Don't' worry! Even if you have never been given a Hebrew name you can still be given one. The way ... | |
| Coverting to Orthodox Judaism | 1/19/2010 |
| Q: Should a male child of a Reformed Jewish couple desire to become Orthodox, what would generally be ... A: This is becoming more and more common. And that's a good thing! If the person is certainly Jewish ... | |
| Passover Haggadah | 1/14/2010 |
| Q: I'm giving a talk in 10 days on medieval Passover practices. I've been doing a lot of research ... A: This type of historical matter is by far not my expertise. Regarding #1 - I do not know what song ... | |
| shaving and wigs | 1/11/2010 |
| Q: I heard from a friend that there used to be an evil decree in Europe and Russia that every Jewish ... A: I have heard this in the past, but I have not undertaken any further research on the issue. This is ... | |
| Jewish ancestry | 12/31/2009 |
| Q: I think you'll agree that a Jew is defined as a person who either 1) was born of a Jewish mother or ... A: Your question is certainly legitimate, and the issue you raise has become a problem, albeit only ... | |
| Temple | 12/17/2009 |
| Q: Rabbi, G_d bless you and your family! Just to let you know up front, I will be asking this same ... A: G.!! Great to hear from you. There are a number of approaches to your questions. I follow the ... | |
| shaving with a razor | 12/14/2009 |
| Q: According to jewish law, where on a mans face and neck can he shave with a razor and where can't he? ... A: A man is not permitted to shave with a razor anywhere on his face. Although it is permitted to shave ... | |
| blood sacrifice | 12/10/2009 |
| Q: Can you tell me why G_d demanded the sacrifice of animals? Why did animals have to die for our ... A: You have some great questions! Actually the commentators teach (most notably, the Rambam) that God ... | |
| Famine and Jewish Law | 11/26/2009 |
| Q: Are there any Jewish law's pertaining to time of famine? Are there certain things that Jews are ... A: Branton- Your question is a good one!! In fact much of the Talmudic tractate of "Taanit" deals ... | |
| Ashkenazi | 11/6/2009 |
| Q: I am interested in the history of the Ashkenazi Jews- are they descended from Shem? I read in an ... A: This is not my area of expertise, but there is no connection between Shem and Ashkenazi Jews in ... | |
| atheism | 11/3/2009 |
| Q: My son has been dating a Reformed girl for the last year. They were getting serious and discussed ... A: And to cut to the chase -- your son did the right thing to break it off. The Jews are both a nation ... | |
| belief | 11/2/2009 |
| Q: Shalom Rabbi, do Jews believe in Heaven and if so, who goes, do Jews believe in hell and if so who ... A: Judaism certainly believes in an afterlife. We don't truly have a Heaven or Hell - just Olam Haba - ... | |
| pre-marital sex | 9/18/2009 |
| Q: Is it true that the Torah does not forbid pre-marital sex? If so, why not? A: You ask a good question. First of all - it is important to note that Jewish law consists not only of ... | |
| head covering | 9/9/2009 |
| Q: Why do women increase their head covering while lighting the Shabbos candles (as opposed to, say, ... A: The answer, however, is indeed - brief. It's quite simple. According to orthodox practice, a ... | |
| G-D name - Jewish tradition | 8/18/2009 |
| Q: What exactly is reason or law behind on why Jewish people do not use or attempt to pronounce the ... A: We belive that the Divine name, the tetragrammaton is to be reserved for the Kohanim (the High ... | |
| period cleanliness.... | 8/5/2009 |
| Q: seven days after a womans period she is unclean and everything she touches is unclean. do i become ... A: A woman who has had her period does not make anything or anyone impure. Once a woman gets her ... | |
| YHWH and the third commandment | 7/20/2009 |
| Q: For a long time now I've questioned the common interpretation of the Commandment forbidding the ... A: John- First of all -- every word of what you wrote is true and accurate, the there are a small ... | |
| food | 7/15/2009 |
| Q: Rabbi This may seem like a silly question but, are chickens mentioned in the bible? I know ... A: Bob- You're question is an amazing and important one, as you will see. Regarding the laws of ... | |
| the death penalty... | 7/11/2009 |
| Q: under what laws in torah does it justify jewish men not carrying out the death penalty for crimes ... A: According to Jewish law the death penalty can only be administered when there is a functioning Beit ... | |
| Coming of the Mashiach | 7/5/2009 |
| Q: I have been thinking about the coming of Mashiach and according to Tehillim 72:6 (& Hoshea ... A: There are no clear records of descent going back that far, though there are individual and families ... | |
| Coming of the Mashiach | 7/2/2009 |
| Q: I have been thinking about the coming of Mashiach and according to Tehillim 72:6 (& Hoshea ... A: There is no basis for the interpretation you suggest. Allow me to share with you the chapter on ... | |
| a question about sex laws... | 6/27/2009 |
| Q: where in deuteronomy, leviticus, and exodus does it say that premarital sex with a girl who is ... A: The fact is that the Torah does not directly say that premarital sex is a sin. Jewish law, however, ... | |
| Religion | 6/26/2009 |
| Q: How are you Sir. My question is that why jews have been subjected to discrimination and diaspora ... A: The primary prophet of the Jews was Moses. The Land of Israel is important to the Jews because the ... | |
| Conversion | 6/5/2009 |
| Q: I am reading a book called Turbulent Souls by Stephen J. Dubner. It describes his family's history. ... A: Good Question Dave! According to the letter of the law -- he is Jewish,a always was Jewish, and ... | |
| Old Testament burial method | 6/1/2009 |
| Q: I am a Christian and I am trying to understand how a body was prepared for burial. My understanding ... A: As a rabbi I can only authoritatively discuss Jewish burial customs. However, I think what you might ... | |
| Noahide Laws | 5/19/2009 |
| Q: I am currently taking Judaism classes online with a Rabbi. I love Judaism, every aspect of it and I ... A: From the perspective of Judaism, the highest level a non-Jew can reach is that of a Ben-Noach -- one ... | |
| the temple | 5/19/2009 |
| Q: Rabbi Ari Enkin When the temple was built, it is my understanding that there was a separate place ... A: I beleive that the links below will answer many of your questions regarding the Beit Hamikdash. ... | |
| the meaning of... | 5/1/2009 |
| Q: what do the names Abram and Abraham mean? (: ANSWER: Hi! According to Genesis 17:5, his name was ... A: There is nothing forbidden regarding wearing the red string bracelet, however, it has virtually no ... | |
| the meaning of... | 4/30/2009 |
| Q: what do the names Abram and Abraham mean? (: A: According to Genesis 17:5, his name was changed by God from Abram (probably meaning "the father is ... | |
| Words spoken before Ha-Motzi on Shabbat | 4/27/2009 |
| Q: I am a convert to Judaism, and have attended Shabbat dinner at my fiancee's home many times, where ... A: I can glean from your e-mail that your future family are Jews of Sefardic origin. The verse which ... | |
| Orthodox Judiasm & Anti-depressants | 4/21/2009 |
| Q: Is there any law prohibiting Orthodox Jews from taking anti-depressant medications? A: There is no such prohibition. As with all medications -- use is permitted, abuse is forbidden. ... | |
| Is not the Passover Story a Tragedy? | 4/17/2009 |
| Q: Shavua tov: This has been a bad yomtov for me and my family. My 15 year-old boy broke away from ... A: Don't take all Midrash *so* seriously! It may have happened, it may have not. Even if it did happen ... | |
| The wide-brim black Jewish hat | 4/15/2009 |
| Q: I've noticed that Jewish men sometimes wear a wide brim black hat instead of a kippah. Does this ... A: The black hat is in addition to a kippa which is worn on the head underneath the hat. There is no ... | |
| help me | 3/16/2009 |
| Q: shalom this is sharon from india.i wanted to convert as a jew.recently i came to know the truth when ... A: Greetings and blessings to you! I am unable to help you with conversion. You must approach your ... | |
| Boy Scouts and man's basic nature good or evil | 3/10/2009 |
| Q: Rabbi Enkin, At a recent Boy Scout camping trip, I had an interesting conversation with a fellow ... A: Though you may not like it, my first and strongest thoughts is that it is best that the Boy Scouts ... | |
| beards | 3/2/2009 |
| Q: What are the Modern Orthodox beliefs regarding beards and payot? A: "Belief" is not the right word. "Practices" would be better. Modern Orthodoxy accepts the view with ... | |
| G-d's involvement in daily events | 2/26/2009 |
| Q: According to the orthodox jewish perspective does G-d get involved in daily events? If somthing good ... A: Outstanding question. There are two equally valid approaches to this question with orthodox ... | |
| BAr Mitzvah and puberty | 2/24/2009 |
| Q: I understand that according to strict Jewish law in order for a boy to become a bar mitzvah he must ... A: Good question! According to the strict letter of the law you are right -- both the coming of age ... | |
| Gehenna, 11 months of cleansing, etc | 1/13/2009 |
| Q: I work in a room with a few lawyers and we wander into all manner of conversations. We had a ... A: The eleven month cleansing takes place in the Next World. It is completely immaterial try to ... | |
| conversion and non-jewish family | 1/2/2009 |
| Q: I've got a question regarding what happens post conversion to a converts interactions with their ... A: You are perfectly permitted and entitled to interact with your non-Jewish family as a family member. ... | |
| The Law of God/Law of Moses | 12/22/2008 |
| Q: Could you tell me if there is a difference in the Law of Moses (Book of the Law) and the Law of God ... A: We believe that the entire Torah along with all it's commandments and precepts were given to the ... | |
| Should I ask?? | 12/17/2008 |
| Q: I'm hoping you can give me an answer on this. I am a non-jew who has been under the teachings of a ... A: Your dedication and generosity is certainly beyond the call of duty, to say the least. The Rav ... | |
| Modern Day Shiva Trends | 12/9/2008 |
| Q: I would like information about what trends you are seeing in regards to Shiva. Are current trends in ... A: The shiva is a seven day mourning period. In fact, the word "Shiva" means seven in Hebrew. There is ... | |
| smoking... | 12/3/2008 |
| Q: does the oral or written law say it is forbidden to light a fire on the sabbath? seeing as The Lord ... A: The prohibition on lighting a fire on Shabbat is the most explicit of all Shabbat prohibitions. See: ... | |
| childrearing | 11/28/2008 |
| Q: I am interested in learning the customs of Orthodox childrearing. Can you help me to understand why ... A: From what I gather you are probably not Jewish. Orthodoxy is not a religion, but rather a stream of ... | |
| kohen/ convert marriage/ children staus | 11/27/2008 |
| Q: I'm email to get your advise on a matter which I need some guidance on a situation I'm facing in ... A: Without getting into the Talmudic background of the matter, suffice it to say that it is unanimous ... | |
| conversion | 11/25/2008 |
| Q: For over a year I'm going to the synagogue, to realize my my dream I was having since I'm a child. ... A: Agata- It is very difficult for me to help you as I am here in Israel. It is true that there are ... | |
| sea travel | 11/24/2008 |
| Q: What are the orthodox laws that govern travel at sea...specifically if an orthodox jew is at sea ... A: This is a very uncomfortable situation. In most cases it will simply not be possible (for a number ... | |
| beards... | 11/24/2008 |
| Q: in the Law of Moses, it says that a man of the Jewish faith must not trim the corners of his beard. ... A: Peter- The prohibition you are referring to is the prohibition of shaving with a razor. A man is ... | |
| Prophets... | 11/17/2008 |
| Q: In terms of the jewish definition of the word "Prophet", is the word only limited to someone who ... A: Judaism does not accept any post-bible (Old Testament) personalties as legitimate prophets. ... | |
| oral torah | 11/13/2008 |
| Q: i think there is a guemara that says that the oral torah was written although it was forbidden to do ... A: Sebastian-- Please forgive me -- I have been so busy today. Please review this link -- I think it ... | |
| oral torah | 11/13/2008 |
| Q: i think there is a guemara that says that the oral torah was written although it was forbidden to do ... A: In order to answer you as quickly as possible, please allow me to post a link for you to look at. I ... | |
| Hannukah | 10/5/2008 |
| Q: When did celebrating Hannukah begin? A: Chanuka is an eight-day Jewish holiday commemorating the rededication of the Second Temple in ... | |
| Abraham/Sabbath | 9/22/2008 |
| Q: Rabbi, Two unrelated questions: 1) We say "father Abraham" yet Israel did not begin until Jacob. ... A: 1. The Jewish people began with Abraham even though they were not yet called "Yisrael" until Jacob's ... | |
| Just God | 8/26/2008 |
| Q: In the Exodus, it is mentioned the following. [5] Thou shalt not bow down thyself to them, nor ... A: Nain - Great question!! God does not punish children for the sins of their fathers, nor does He ... | |
| Regarding laws in exodus. | 8/11/2008 |
| Q: In the book of Exodus, It is mentioned as the following: If his master have given him a wife, and ... A: Slavery was quite common in biblical times and in fact, it was none other than the bible to first ... | |
| clothing... | 7/28/2008 |
| Q: it is the law to only wear clothes woven from one material....but what if it is made from one ... A: The 7 laws of Noah are not explicitly stated in the Torah/Old Testament. It is the Talmud which ... | |
| clothing... | 7/27/2008 |
| Q: it is the law to only wear clothes woven from one material....but what if it is made from one ... A: The area of Jewish law you are referring to is known as "Shatnez" - the prohibition to wear a ... | |
| conversion....! | 7/15/2008 |
| Q: i am currently a 20 year old of Japanese descent living in the UK and have been trying my hardest ... A: Judaism does not belive that one must be Jewish in order to find favor and salvation with God. ... | |
| sabbath | 7/12/2008 |
| Q: My life has changed for the better in so many ways since I have began to observe the sabbath and ... A: Wow! Your question is, well, a massive one! Keep in mind that the Sabbath came way after the era of ... | |
| I'm very embarrassed | 7/10/2008 |
| Q: Shalom Rabbi, When I was a little kid and brought up as a Christian I told G-d that if I ever ... A: From the Biblical perspective, "swearing", refers to making an oath in the name of God and then not ... | |
| shoah | 5/30/2008 |
| Q: With all the horrible things that happened to Jews during World War II what is the proper Jewish ... A: I assume the primary focus of your question has to do with relations and attitudes vis a vis ... | |
| ten percent | 5/29/2008 |
| Q: In Judaism is the tithe still practiced? If not, then why not? Thanks: Josh A: Judaism encourages (but does not require outright) that everyone donate 10% of their income to ... | |
| The Talmud | 5/14/2008 |
| Q: I read Israel Shahak's book "Jewish History, Jewish Religion, the Weight of Three Thousand Years"... ... A: First of all, let me begin by stating that the writings of Israel Shahak are to be avoided. He is a ... | |
| images | 5/5/2008 |
| Q: The Law of Moses says to not make for yourself an image of any living thing....but does this mean ... A: Very good question! Very careful reading of the verse! According to the letter of the law, it ... | |
| Exod. 3:14 | 4/29/2008 |
| Q: I would appreciate very much if you please inform me whether the rendering of the name "IAM THAT I ... A: God's name "Adonai" (often written Yahweh) is the name used primarily throughout the Bible, as well ... | |
| Curse | 4/22/2008 |
| Q: Cursing one's parents is utterly prohibited, but i do not exactly understand precisely what counts ... A: You are correct that it is only the former which is punishable by death. The latter, merely using ... | |
| conversion | 4/21/2008 |
| Q: This is kind of a follow up. From what I have gleaned, just from the internet, is that being a Jew ... A: You are right.. A person born as Jew is a Jew no matter what kind of lifestyle he lives. One who ... | |
| Sarah | 4/18/2008 |
| Q: In the bible, Abraham's wife Sarah is considered to be the first Jewish woman. Since her mother ... A: Very good follow up! It is interesting to note that the laws of conversion as we have them now are ... | |
| Sarah | 4/18/2008 |
| Q: In the bible, Abraham's wife Sarah is considered to be the first Jewish woman. Since her mother ... A: Great Question! Abraham and Sara were indeed the first 'Jews' - the first to recognize that the ... | |
| Long side hair? | 4/17/2008 |
| Q: We have a friend through my husband's work who is a Rabbi. He sent us a Hannukkah card of his ... A: The Torah forbids males to shave their sideburns bald. (See Leviticus 19:27). Some ultra orthodox ... | |
| customs for burial of a Rabbi | 3/29/2008 |
| Q: I wanted to know the steps of preparing the body of a Rabbi before burial. I have heard different ... A: In Judaism, all precepts apply to all Jews equally, and certainly in death. The method or preparing ... | |
| Hebrew Canon | 3/13/2008 |
| Q: Good day! I am a Christian interested in the subject of the canon of scripture. How is it that the ... A: Cody- Amazing question. In a nutshell the books of the Hebrew Bible were selected and canonized ... | |
| fkmsd | 3/2/2008 |
| Q: a girl and i have kissed, but she has a obyfriend. Does it count as auldtery if they are not ... A: According to Torah law, all contact between males and females who are not married to each other ... | |
| Ne'ila | 1/26/2008 |
| Q: Greetings, I seem to remember two things from the end of Yom Kippur: 1. A prayer beginning “P'tach ... A: The prayers of Neila are a "last minute" appeal that God inscribe and seal us for a good year as Yom ... | |
| breaking shabbat on behalf of another | 1/24/2008 |
| Q: If Jew 1 prepares something for Jew 2 to use on Shabbat and by doing so breaks Shabbat themselves, ... A: It is forbidden for a Jew to allow another Jew to do something which is forbidden on Shabbat. This ... | |
| Arete | 1/23/2008 |
| Q: Shalom. I am a Christian youth Sunday School teacher. In my searches recently, I found some insight ... A: I am not familiar with "arete" so perhaps I am not the one who can best answer your question. ... | |
| breaking shabbos for an emergency | 1/18/2008 |
| Q: Rabbi, if a doctor, dentist, etc is shomer shabbos, can he/or she take emergency call? That is, ... A: There are so many factors to the components of your question that a straight answer is not possible. ... | |
| hallachi marriage rules | 12/30/2007 |
| Q: my research into 16th-century crypto-Jewish families in Spain has unearthed a great number of ... A: The Torah, the ultimate authority on the permitted and prohibited discusses in Leviticus 18 which ... | |
| Hebrew Customs | 12/26/2007 |
| Q: I have found that Torah comes to life if one is familiar with the customs and the roots of those ... A: Customs are continually changing. Jewish customs have always been influenced by external and ... | |
Orthodox Judaism
Answers by Expert:
Rabbi Ari Enkin
Top Expert on this page
Expertise
Specialization in Jewish Law and Customs
Experience
Education/Credentials
Rabbi Ari N. Enkin originally from Montreal fulfilled his life-long dream of making aliyah in July 2004 after serving for seven years as a congregational and community rabbi in Montreal, Edmonton, and Winnipeg.
Rabbi Enkin holds both Yoreh-Yoreh and Yadin-Yadin semichas as well as a Masters Degree specializing in Informal Adult Education. He is the author of several seforim including most recently "Dalet Amot - Halachic Perspectives" which discusses over 100 contemporary halachic issues. The first printing quickly sold out and a second revised edition is underway (Gefen Publishing House), as is a second volume in this series. Rabbi Enkin is also a frequent contributor to a number of publications on mostly Halachic topics.
Since making Aliyah Rabbi Enkin has taught at a number of Yeshivot and Seminaries and is currently working as the manager of Cheerfully Changed Financial Services in Modiin. He also serves as the General Editor of the highly acclaimed Hirhurim Website as well as rabbinical advisor to Judaism.about.com.
His lectures are known to be fun, informal, and enlightening appropriate form both laymen and scholars alike.
©2012 About.com, a part of The New York Times Company. All rights reserved.