Entries by Greg Bernhardt

Dealing with Doubt as a Science Student

Doubt, as odd as this may sound, can actually be essential to our living.  We all make decisions and later have questions on whether we made the right choice or not so doubt will help influence our next decision when it comes to the same question or choice.  While doubt is a natural part of […]

Think You Know Pluto?

Pluto has been in the news quite a bit these past several months. Let’s see if you’ve been paying attention. Feel free to share your score in the comments section. When finished head over to our Pluto Flyby forum thread for the latest news. Greg BernhardtI have a BS in Information Sciences from UW-Milwaukee. I’ve helped manage […]

What Is Evolution and How Does It Happen?

What is evolution? In every field of scientific endeavor, there comes now and then a quantum shift in knowledge, a grand denouement of the way things really are. In physics we have Newton’s laws of mechanics, Einstein’s theories of Relativity and the new theories of Quantum Mechanics. In Biology we have the discovery of DNA […]

Methods to Deal with Procrastination

It’s 6:30 in the morning. You’ve just woken up and you feel so sleepy you think to yourself “A few more minutes can’t hurt.” And so you drift on to sleep under your warm comforter. The sounds of kids playing outside, mixed with the sunlight and birds chirping at your window wakes you up three hours later. […]

The Last Man On The Moon | A Look Back at Previous Missions

On 11th December 1972, just over 45 years ago, man set foot on the moon for the last time. The Apollo 17 mission manned by Eugene Cernan and geologist Harrison Schmitt was the last in the program, marking the end of, quite possibly, the most important era in space exploration. The Apollo program began in […]

The Isaac Newton Quiz

One of the great heavy weights of history. How much do you really know about him? Let’s find out! “To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.” – Isaac Newton Greg BernhardtI have a BS in Information Sciences from UW-Milwaukee. I’ve helped manage […]

Think You Know about the LHC?

News of the LHC progress has dazzled scientists and hobbyists alike. It’s now time to show just how much you know about the operation. Please share your results     Greg BernhardtI have a BS in Information Sciences from UW-Milwaukee. I’ve helped manage Physics Forums for over 17 years. I enjoy learning and discussing new […]

Physics Blogs You Need to Be Reading

These are some of the best physics blogs, updated regularly, written by some of the top minds. The feeds are updated on page refresh, so bookmark this page and you’ll have a quick overview of all the blog’s latest entries each time you visit here. Sean Carroll’s “Preposterous Universe“ Sabine Hossenfelder’s “Backreaction“ Peter Woit’s “Not Even […]

It’s Elemental! The Periodic Table Quiz

The periodic table is something we all are made aware of early in schooling, but have you really looked at it closely and learned about it’s lessor known facts? Let’s find out!     Greg BernhardtI have a BS in Information Sciences from UW-Milwaukee. I’ve helped manage Physics Forums for over 17 years. I enjoy […]

Think You Know Richard Feynman?

Richard Feynman is one of the most popular and highly regarded physicists of all time. You think you may know him, but do you? Let’s find out by taking this quiz! Greg BernhardtI have a BS in Information Sciences from UW-Milwaukee. I’ve helped manage Physics Forums for over 17 years. I enjoy learning and discussing […]

How Well Do You Know Albert Einstein?

Albert Einstein is arguably the most famous scientist of all time, but how much do you actually know about him? Let’s find out by taking this quiz! No prizes, so no Googling. (post your honest score in the discussion thread)     Greg BernhardtI have a BS in Information Sciences from UW-Milwaukee. I’ve helped manage […]

7 Basic Space Law Questions Explored

*This Insight is intended to have logical basis but not to be taken as purely factual. 1. Would ‘Star Wars’ have been legal? Well, I’m afraid I cannot answer that with a definite “yes”… The essential feature of the American Strategic Defense Initiative (SDI), often dubbed ‘Star Wars’, concerned satellite-based lasers. Triggered by relevant information […]

The New Bioethics | A 21st Century Overview

It used to be that worrying about the future meant worrying about the crop output, or whether father was really going to die from the fever that was sweeping the village. Now it means recognizing that in 20 years, a desktop computer will be more powerful than all the computers in California that exist now. […]

Solar Eclipse Viewing Basics

Safety Information Before attempting to view a solar eclipse: NEVER view the sun with the naked eye for any length of time, as doing so may cause irreversible eye damage or even blindness. Solar filters and solar glasses are not made to any officially regognised safety standard in all countries, and the use of these […]

The Fates of Massive Stars

Introduction Deep in the vastness of space, beyond our solar system, stars are born in primordial nebulae, gaseous molecular clouds on the spiral arms of galaxies extending across the heavens. Intense gravitational forces compress the cloud causing temperature and pressure to increase immensely. At critical temperatures and pressures within the nebula the miracle of life […]

Physics Forums Crackpot Index and Bingo

Discussing science online can often be a frustrating experience if no quality controls are in place, which is often the case. As part useful reference and part entertainment PF has put together an adequate list of common attributes associated with dubious scientific discussion. Next time you’re in a discussion, check this list to see if […]

Physics in Hand-to-Hand Combat

Civilizations wax and wane but principles of physics remain steadfast. The most effective techniques from martial arts are ones that effectively dole out principles of physics, quickly, forcefully, and with a will to achieve a goal. Some are born with an innate ability to understand physics through their body’s impulses and responses. This is known […]

Interview with Mentor Integral

Meet a Mentor is a biweekly (twice a week) series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: Integral Can you give us a brief bio? I am a 2nd generation Oregonian born smack in the middle of the 20th century. My dad came to […]

Interview with Astrophysicist D H

Meet a Mentor is a series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: D H Give us a brief history of D H I spent my childhood in Minnesota, the first nine years in Minneapolis and the last nine on a farm. I […]

Interview with Physicist George Jones

Meet a Mentor is a weekly series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: George Jones Give us a brief history of George Jones. On my mother’s side, my roots in Canada have been traced back to the late 1600s; on my father’s side, […]

Interview with Mentor Evo

Meet a Mentor is a biweekly (twice a week) series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: Evo Can you give us a brief bio? I’ve been in love with science as long as I can remember. As soon as I began to read […]

Interview with Mentor LisaB

Meet a Mentor is a fun series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: Lisab Give us a brief history of lisab I didn’t follow the usual education route. I dropped out of school in about 8th grade to hang out with my hoodlum […]

Interview with Biologist Ryan_m_b

Meet a Mentor is a fun series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: @Ryan_m_b Give us a brief history of Ryan_m_b I’m in my mid-twenties, spent most of my life living in a small town on the border of the country side but […]

Interview with Mathematician Mark44

Meet a Mentor is a series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: Mark44 How did you become interested in mathematics? Along about 4th grade I came across an algebra textbook that really fascinated me, with all of its x’s and y’s, and symbols […]

Interview with Physicist jtbell

Meet a Mentor is a weekly series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: jtbell Can you give us a brief history of jtbell? I went to a liberal-arts college in a small town (a village, actually) in the Midwest US. There were only […]

Interview with Physicist Dale

Meet a Mentor is a fun series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: DaleSpam Give us a brief history of DaleSpam I have moved around a decent amount during my life: Arizona, Indiana, Colorado, Texas, Michigan, Utah, Ohio, and North Carolina. With all […]

Interview with Engineer Chestermiller

Meet a Mentor is a fun series to help you get to know your wonderful Mentors better. Constructive questions and comments are welcome! Today we meet: @Chestermiller Give us a brief history of Chestermiller Born Jan., 1942, Brooklyn, NY Samuel J. Tilden HS, graduated June 1959 (Capt. Math Team) Cooper Union for the Advancement of Science […]

Evolution Frequently Asked Questions

Q: Isn’t evolution just a theory? A: As opposed to what? Yes, evolution is just a theory, but theories are the foundations of the idea of science. We can never really prove evolution. In the absence of a time machine it is impossible to check evolution occurs. However, we can see that evolution provides the […]

5 Pieces of Evidence for Evolution

Evidence for evolution Here’s some of the evidence available for evolution: 1. Fossil record: The fossil record is the piece of classical evidence that is always given for evolution. Paleontologists digging at various sites across the world have always found the long preserved remains of exotic and mysterious creatures that clearly do not exist today. […]

Studio in a Box: Digital Modeling Amplifiers

Musical-recording age Since the dawn of the musical-recording age, the preferred method of recording guitars has been to set up microphones in front of amplifiers and capture the sounds produced. This carried the limitations of eliminating the electromagnetic signal bleed from the amplifier, the temperamental nature of analog equipment, and placing the microphone so as […]