Recent content by Klause

  1. K

    Optical Is my DIY refractor telescope out of focus with the eyepiece?

    Thanks. I will try this!
  2. K

    Find the electrostatic potential above loop of charge Q?

    So potential due to a continuous distribution of charge : V= 1/(4πε0)∫dq/r Where r is the distance of the wire to the point at which you are trying to find the potential. In this case, D. So since the wire has a radius R. The r=√(R2+D). This is because all points along the ring are at the same...
  3. K

    Optical Is my DIY refractor telescope out of focus with the eyepiece?

    So, I recently finished my refractor telescope. I have a objective lens of 80mm and focal length of 900mm, 70mm focuser, tube length is 99.8 cm. I have a 25mm and 9mm eyepiece. I have been testing it out during the day time, on objects I can easily spot. First I use no eyepiece to focus on an...
  4. K

    Calculators Getting Fractions on TI Nspire CX - Eigenvectors & Polynomial Roots

    Hey so I'm new to my TI nspire cx, still getting the hang of it. I've been trying to figure out how to get my eigenvector values to be fractions instead of decimals when I calculate them on here. Also, when I find the polynomial roots I get back decimals instead of fractions. I would like to...
  5. K

    What are the top physics topics for new post bac students?

    Hi guys, I'm new to the forum and I'm a new post bac physics student. Looking forward to discussion of physics related topics. I'm a fan of QFT, astronomy/astrophysics, but really I just love to hear any thing good in science hard or soft. Always open to chat.
Back
Top