Podcasts




When will we learn how to process nuclear fuel?

Duration: 0:35:00

There are too many still incomprehensible, unexplored and, frankly, frightening in the field of nuclear energy . We do not feel it, but it is all around us and can affect our health in a catastrophic way . Agris Auce, PhD, lead researcher at the Institute of Chemical Physics of the University of Latvia .


Language: Russian

Paradigm and paradoxes of physics

Duration: 0:35:00

Physics is the science of the world, in general, but now, according to some scientists, physics is going through ambiguous times . More and more phenomena are being discovered that cannot be explained using the laws known to us . We are talking about this today in the Nature of Things program with theoretical physicist Professor of the University of Latvia Vyacheslav Kashcheev .


Climate change: drown or freeze?

Duration: 0:35:00

Alexander Chernokulsky, Candidate of Physical and Mathematical Sciences, Senior Researcher at the Laboratory of Climate Theory of the Institute of Atmospheric Physics of the Russian Academy of Sciences. Lyudmila Vavilonskaya on the air of the Latvian radio 4 .


Learning abilities: a controversial category?

Duration: 0:37:05

Today's conversation will be about abilities . However, the guest of our broadcast does not agree with this term at all . According to him, as such, people have no abilities, but sometimes the development of thinking is not enough .


The solar system in a local gas bubble. What do scientists know?

Duration: 0:35:00

In good weather we can see stars in the sky and it seems that there is nothing between them but emptiness . Scientists suggest individual star systems may be in the so-called "local bubbles" This is not the most important "trick" of our Universe .


24. Ripples of Space and Time

Duration: 0:22:06.209116

Welcome to listen to the discussion on the history of science. Hawking wrote a new book called "The Grand Design," in which he mentioned the analogy of a goldfish in a fish tank. If the fish is inside the fish tank, it sees the external world as distorted, making it seem unreal. Physicists today are like the goldfish in the tank, unsure if the universe's space is curved or not. Is the universe bent or straight? If the space is curved, is pi still equal to 3.14159? On Earth, the equator makes the Earth a sphere. Is the circumference approximately twice the diameter? These questions lead to the discussion of how to determine if space is curved. Physicists use intricate methods, such as interferometers, to measure and detect any disturbances in the space-time continuum, like gravitational waves. Interferometers are devices that use two perpendicular laser beams to form interference patterns. If the space-time is distorted by a gravitational wave, the path of light is altered, allowing physicists to measure the effect. To increase sensitivity, the length of the laser beams must be extended, as demonstrated in the LIGO observatories in the United States. By having two observatories located far apart, physicists can differentiate between noise and valid signals from gravitational waves. Collecting data since 2003, LIGO is the most significant and sensitive gravitational wave detector globally, with plans for further upgrades to increase sensitivity. However, increasing sensitivity and maintaining interferometers are costly, leading to suggestions for other countries, such as China, to invest in interferometers due to their increasing financial stability. Although the cost and complexity of these instruments are high, they remain essential for scientific research and exploration. The potential for a global collaboration in detecting and studying gravitational waves remains promising, with the hope of expanding our understanding of the universe and its mysteries.


Language: Chinese