If I ask you to picture a radio telescope, you probably imagine a large dish pointing to the sky, or even an array of dish antennas such as the Very Large Array. What you likely don’t imagine is something that resembles a TV dish in your neighbor’s backyard. With modern electronics, it is relatively easy to build your own radio telescope. To understand how it can be done, check out a recent paper by Jack Phelps posted to the arXiv preprint server.
How to build a home radio telescope to detect clouds of hydrogen in the Milky Way
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In early 2022, thousands of Canadians descended on Ottawa as part of the so-called “Freedom Convoy” in protest of the government’s pandemic-related restrictions. Many were opposed to the government’s power to impose lockdowns, masking and [...]
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The world appears to be plagued by crises—at least according to the media.This post was originally published on this site
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A study suggests that political abuse is a key feature of political communication on the social media platform, “X,” and whether on the political left or right, it is just as common to see politically [...]
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In an era where demonstrations involving force are growing in number and viewed as a likely source of increased collective violence, the scientific understanding of the correlation between protests and the social media communications of [...]
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A number of reports have called South Africa a politically polarized society. This may seem uncontroversial, given the country’s history of dispossession and discrimination during colonialism and apartheid, and their continuing legacy after 30 years [...]
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Imagine spending years hiding who you are to fit into a group, only to become invisible once you leave. This is the reality for many women who serve in the military.This post was originally published [...]
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Chinese firms hit by the U.S.–China trade war are increasingly hiring executives with international experience to help manage adversity, particularly those skilled in European markets and marketing, according to new research from the University of [...]
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In the last weeks of the 2024 United States presidential campaign, the candidates and their supporters made a final plea to voters. Polls revealing a gender gap in support for Kamala Harris and Donald Trump [...]
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In western Germany, support for xenophobic statements has risen significantly and is now approaching attitudes in the east. In the country’s eastern states, satisfaction with democracy as it is practiced in Germany is at its [...]
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Dr. Jan Koura, a researcher from the Faculty of Arts at Charles University, Prague, reveals the Czechoslovak intelligence operations that shaped political dynamics on the island of Cyprus during the Cold War. This work sheds [...]
