Essays about: "Vi håller oss på jorden"

Found 5 essays containing the words Vi håller oss på jorden.

  1. 1. Exocomets in the β Pictoris system

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Klaudia Jaworska; [2024]
    Keywords : Physics and Astronomy;

    Abstract : Comets have been a source of fascination throughout the history of man. In recent years, advances in technology have opened up for the study of extrasolar objects, among them exocomets. The first exocomets were observed in the β Pictoris system almost 50 years ago and the system has been of interest ever since. READ MORE

  3. 2. Hyper-velocity stars from globular clusters hosting intermediate-mass black holes

    University essay from Lunds universitet/Astrofysik; Lunds universitet/Fysiska institutionen

    Author : Matilda Skantz; [2023]
    Keywords : Hypervelocity stars; run-away stars; stellar binary; intermediate mass black hole; globular cluster; Hills mechanism; Physics and Astronomy;

    Abstract : In 1988 Hills proposed that stars can gain velocities above 500 km s−1 if they are in a stellar binary which gets disrupted by a super massive black hole (SMBH). One of the stars would get trapped in an elliptical orbit around the SMBH while the other gets ejected and obtains a relatively high velocity. READ MORE

  4. 3. Centrifugal Turbopumps - Flow Physics and Modelling

    University essay from Lunds universitet/Institutionen för energivetenskaper

    Author : Carl Eriksson; Hampus Henåker; [2021]
    Keywords : Centrifugal Pumps; Rocket Science; Turbopumps; Two-Zone Model; Impeller; Vaneless Diffuser; Vaned Diffuser; Technology and Engineering;

    Abstract : Choices made in the early stages of a design process are crucial. They dictate many of the limitations and freedoms the designer has in later stages of the design. Informed decisions are therefore crucial at this stage. READ MORE

  5. 4. From being worried about the climate crisis to reducing or quitting traveling by air : and what Tågsemester and Vi håller oss på jorden has meant for this behavior change

    University essay from SLU/Dept. of Energy and Technology

    Author : Ninja Tunbjer; [2019]
    Keywords : air travel reduction; flight free; pro-environmental behavior change; sustainability; communication; Vi håller oss på jorden; Tågsemester;

    Abstract : In order to transition to a society that can exist safely within the planet's biophysical limits, we need act on all levels simultaneously. This thesis focuses on how citizens can act individually and collectively to change behavior and to create acceptance and support for politics and companies to make necessary changes. READ MORE

  6. 5. Flavour-ordering in the nonlinear sigma model with more derivatives and legs

    University essay from Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Author : Mattias Sjö; [2019]
    Keywords : Particle physics; effective field theory; QCD; mesons; amplitudes; Physics and Astronomy;

    Abstract : We present a generalisation of the flavour-ordering method applied to the chiral nonlinear sigma model with any number of flavours. We use an extended Lagrangian with terms containing any number of derivatives, organised in a power-counting hierarchy. READ MORE