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Most reconstructed signals were within human hearing, but one species may have reached around 20 kHz. This is not an actual Jurassic recording. It is a scientific reconstruction that helps researchers understand how ancient animals communicated and how ecosystems worked. More: whatsapp.com/channel/0029Vb…

This may be what the world sounded like 165 million years ago. Scientists reconstructed the calls of ancient insects from fossilized wings, using preserved sound-producing structures and computer modeling. 🎥🔊 Gu et al. / PNAS, 2026 DOI: 10.1073/pnas.2615107123

These seals have been found in Jerusalem, Lachish, and other cities of ancient Judah. They show that nearly 2,700 years ago, the Kingdom of Judah had cities, a royal administrative system, and Hebrew writing. Sometimes history survives on something as ordinary as a broken jar handle. More stories from Israel: WhatsApp Channel whatsapp.com/channel/0029Vb…

This seal is about 2,700 years old. The Hebrew inscription למלך, “le-melekh,” means “belonging to the king.” Such jar-handle seals were used in the Kingdom of Judah during the First Temple period. They are material evidence of ancient Judah’s administration and Hebrew writing. Photo: Tom Bahar / Wikimedia Commons / CC BY-SA 4.0

Even in 2015, transparent grandidierite suitable for cutting was extremely scarce. A comparable 2.43-carat stone is currently listed for about $7,290. It can also show three different colors depending on the viewing direction. More stories: whatsapp.com/channel/0029Vb…

Grandidierite is one of the rarest gem minerals. The first known transparent faceted stone, documented by GIA in 2003, weighed just 0.29 carats. The transparent stone in the first photo weighs 2.43 carats. 📷 DonGuennie / G-Empire / CC BY-SA 3.0 📷 Robert M. Lavinsky / iRocks / CC BY-SA 3.0

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More than 160 doctors and nurses have also been trained through the program, taking that knowledge back home and helping many more children. More stories about Israel, science, history and technology whatsapp.com/channel/0029Vb…

9,000 children from 75 countries have received life saving heart treatment through Israel’s Save a Child’s Heart. For 30 years, the organization has brought children to Israel for cardiac care and trained medical teams from around the world. 📷 Article 25 / CC BY-SA 2.0

After the Romans destroyed the Second Temple in 70 CE, synagogues became even more important as centers of Jewish communal life. Follow Prochik Explains for more fact-based stories about Israel, history, and Jewish traditions. WhatsApp Channel: whatsapp.com/channel/0029Vb…

A synagogue is often called a “Jewish temple,” but that is not quite accurate. In Jewish tradition, there was one Temple, in Jerusalem. A synagogue is a “beit knesset,” literally a “house of assembly,” where people pray, study Torah, learn, and gather as a community. 📷 Baruch Niv / PikiWiki Israel / CC BY 2.5

The female carries a single egg in a temporary pouch. After hatching, the baby feeds on milk secreted through pores in the skin. A mammal that lays eggs, feeds milk without nipples, and senses electric fields. More unusual stories: whatsapp.com/channel/0029Vb…

The echidna’s spines are actually modified hairs. But that’s only the beginning. This mammal lays eggs, has no nipples, and can detect weak electrical fields with receptors on its snout. Adult echidnas don’t even have teeth. 📷 Allan Whittome / Public Domain

This does not mean birds or whales have human language. It means very different communication systems can still be organized in similar ways. More Israel, science, history, and unusual stories: whatsapp.com/channel/0029Vb…

Human speech, birdsong, and whale songs may follow surprisingly similar patterns. Researchers at the Hebrew University of Jerusalem found that Bengalese finch songs follow Zipf’s law, a statistical pattern also known from human language and previously observed in humpback whale songs. 📷 Quartl / Wikimedia Commons / CC BY-SA 3.0 📷 NOAA / Public Domain

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Internet access is becoming less dependent on cables, towers and local infrastructure. The next step is direct connectivity to ordinary smartphones. That could make being completely cut off much harder. Access to information is part of freedom. whatsapp.com/channel/0029Vb…

Some people don’t just talk about the future. They build parts of it. Elon Musk helped take finance online with X.com and PayPal. SpaceX then made reusable rockets practical. Now Starship has deployed Starlink V3. The next revolution may be connectivity itself. 🎥 SpaceX

The building is made up of nine main sections, each turned slightly relative to the one below. Turning Torso became one of Scandinavia’s most recognizable skyscrapers and helped popularize twisting towers around the world. More stories like this: whatsapp.com/channel/0029Vb…

Turning Torso in Malmö looks like a skyscraper twisted around its own axis. Completed in 2005, the 190-meter tower rotates about 90° from base to top. Santiago Calatrava based its shape on his own sculpture of a human torso in motion. 📷 Noahidsmith / Wikimedia Commons / CC BY-SA 4.0

The killings continued long after those two days. Thousands more were murdered at Babyn Yar during the Nazi occupation. Today, the site remains a major place of Holocaust remembrance. Never again. whatsapp.com/channel/0029Vb…

On September 29, people in Ukraine and around the world remember the victims of Babyn Yar. On September 29–30, 1941, German Nazis murdered 33,771 Jews in Nazi-occupied Kyiv, one of the largest mass shootings of Jews during the Holocaust. 📷 Menorah Memorial, Babyn Yar, Kyiv. Adam Jones / Wikimedia Commons / CC BY-SA 2.0