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Articles by David J. Helfand
Kolekcja fałszywych obrazów za 36 mln dolarów i inne tajemnice sztuki rozwiązane za pomocą atomów [fragment książki]
Dziewiętnastowieczny amerykański malarz Ralph Albert Blakelock namalował setki obrazów, ale miał tak duże kłopoty ze znalezieniem nabywców na swoje dzieła, że popadł w depresję i ostatecznie trafił do zakładu dla obłąkanych. Od tej chwili ceny jego obrazów zaczęły rosnąć — ale czy to wszystko były jego dzieła? W latach dziewięćdziesiątych XX w.
Do Not Sign Up For Marriage Counseling Until You Know These 6 Crucial Facts
All married couples make a lifelong vow to each other without truly knowing what the future holds. Most people are never taught how to be in a healthy relationship let alone raise a family or grow side by side with another person for decades while also managing to stay in love. This is probably why more and more couples are asking themselves “Does marriage counseling work and how can it help us?” Behavioral neuroscience research shows us that you will get better at whatever you practice.
The universal timekeepers
They are 99.9999999999995% empty space. Almost perfectly nothing. And yet they make up everything you see, touch, smell, taste, and feel. They feed and clothe you. Their motion makes you warm (and cold). They generate your hopes and dreams and memories. They exist in splendid isolation and in highly complex assemblages. They tell time. And they can reveal secrets of the past that are otherwise unknowable. They are atoms. You’ve likely never seen an atom, even though they permeate your world.
The Universal Timekeepers: Reconstructing History Atom by Atom
Atoms are unfathomably tiny. It takes fifteen million trillion of them to make up a single poppy seed–give or take a few billion. And there’s hardly anything to them: atoms are more than 99.9999999999 percent empty space. Yet scientists have learned to count these slivers of near nothingness with precision and to peer into their internal states.
A Passover Message from Rabbi David Helfand
As the youngest of three brothers, we always enjoyed brotherly competition. Among the favorite memories was gathering around the Passover seder and sharing the newest insight to the Haggadah that we had recently learned at school. This was especially true when we got to the section of our Haggadah that speaks of the four children. Each year we always found a way to offer new insight and understanding to those who were and perhaps were not included in this sacred ritual.
A Chanukah Message from Rabbi David Helfand
Chanukah comes at the darkest time of the year. Without the moon in the sky, we rely on the lights of our candles. Each night, we bring in lighter than the previous night. The lights of the candles not only fill our windowsills, but they fill out hearts and our world. In a world where we are surrounded by darkness, we need to light our lights brighter and with more pride. On Chanukah, we are each a Shamash, a helper, helping light not only our own lights, but the lights of others.
How Does Marriage Counseling Actually Work? 6 Things Couples Needs To Know Before They Go
All married couples make a lifelong vow to each other without truly knowing what the future holds. Most people are never taught how to be in a healthy relationship let alone raise a family or grow side by side with another person for decades while also managing to stay in love. This is probably why more and more couples are asking themselves “does marriage counseling work and how can it help us?” Behavioral-neuroscience research shows us that you will get better at whatever you practice.
The Best Science Books to Help You Understand the World
Let’s face it, the world can be complicated. And at a time when information is more readily available than ever, finding the right information often seems like it’s more difficult than ever before. That’s why we’ve rounded up some of the best science books around that can help you understand everything from plastic to forensic science and help get a handle on our wild, weird, and wonderful world. Are we living in an “infodemic?” Author and astronomer David J.
5 Expert Tips For Navigating A Structured Separation
What is a structured separation and what does it entail to be done successfully? Deciding if you should leave your marriage is a very difficult decision and it often takes an incredible amount of work, thought, and communication to navigate a separation. It’s not uncommon for a couple to hit a point where a break or permanent separation is the best route for the relationship — and it doesn’t mean either party has given up on one another or love. Sometimes, a couple knows when it's time to separate.
Don't Let Technology Cripple Your Intimacy - Touch Your Partner More Than Your Phone
Improve your connection with your partner, enhance intimacy, and rekindle. By David Helfand — Written on Apr 17, 2021 Are you feeling disconnected in your relationship? Do you touch your partner or spouse, and not just in a sexual manner? Or do you spend more time looking at screens than their face? As the use of technology rises in our world, the lack of touch between loved ones is becoming an increasing problem.
Superclusters and the large‐scale structure of the Universe
Article Metrics Altmetric Please Note: The number of views represents the full text views from December 2016 to date. Article views prior to December 2016 are not included.
Computer glitches struck the stock market and United Airlines on the same day. Here’s why you didn’t believe it was a coincidence.
Early Wednesday morning, a computer network problem forced United Airlines to ground all of its planes. A couple of hours after they started flying again, the New York Stock Exchange halted trading for the same reason. It couldn’t have been a coincidence! After all, it was July 8, the day the Wall Street Journal began publication in 1889 — and the Journal’s Web site crashed Wednesday morning, too, right after the stock market shut down.
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