PatrickKieliszek
PatrickKieliszek t1_jbnvk7i wrote
Reply to comment by Major_t0Ad in I just learned that the known shortest DNA in an “organism” is about 1700 base pairs in a certain virus. Is there a minimum amount of “code” required for an organism (or virus) to function in any capacity? by mcbergstedt
How does this selection pressure tie in with the large amount of non-coding DNA in complex organisms?
Reading Wikipedia on this didn't leave me with the impression that there is consensus on the why of DNA that doesn't code for proteins or change transcription sites.
PatrickKieliszek t1_jabbvo8 wrote
Reply to comment by Ieatadapoopoo in Why does temperature determine the sex of certain egg laying animals like crocodiles? by insink2300
One thing about adaptations is that one mutation away from the parent needs to be at least as good if not better than other siblings.
If it's going to take three generations of mutations to get to an advantage, they probably won't make it.
PatrickKieliszek t1_ja9d52w wrote
Reply to comment by mrsirgrape in Movies without a main character? by Ok-Impress-2222
Turkish also provides narration, which other characters do not.
PatrickKieliszek t1_j9ayj1h wrote
Reply to If a water bottle is in the same vicinity as an X-ray being done, will the water bottle still be safe to drink from? by 0zMosiss
It's important to know that radiation isn't one thing.
The three main types that people mean when they use that term are alpha, beta, and gamma.
Alpha particles are little helium nuclei. They can mess up DNA (maybe causing cancer), but they don't travel far and are usually only harmful if the source is inside you.
Beta particles are electrons moving at incredible speed. Not as likely to cause damage as alpha particles, but they travel much further and can cause damage if you are near the emitting material.
Gamma radiation is just very energetic photons (light). Gamma rays are the least likely to do damage because they will likely pass straight through you without interacting. They travel incredible distances though and are difficult to shield against.
X-rays are the same kind of thing as gamma rays, but they have less energy. They are more likely to interact with your body and are more easily blocked. They can do some damage, but the probability is relatively low. Prolonged exposure is bad, but they are low risk for occasional medical imaging.
It is important to note that all of these are harmful because they are ionizing radiation. They can damage complex molecules needed by the body (mostly DNA but also cell structure if in sufficient quantity).
Water is a very stable molecule and x-rays aren't powerful enough to change it. You can actually sterilize water by irradiating it with UV light or stronger (UV is like x-rays but even lower energy), because the molecules that make up bacteria and viruses are more fragile than water molecules.
PatrickKieliszek t1_j98xyao wrote
Reply to comment by textris in LPT: Take a few days to familiarize yourself with a spreadsheet app (e.g., MS Excel, Google Sheets). The uses are endless for school, the office, life, and other people will think you're a wizard. by tophswanson
Index Match is good if your data set is large and you're worried about execution time.
For small data I almost exclusively use xlookup.
PatrickKieliszek t1_j8i48pr wrote
Reply to comment by lucidludic in Light traveling through a medium that slows it. Does the same photon emerge? by TheGandPTurtle
For the "why" to this explanation, it comes from the change to the permittivity and permeability of the material.
PatrickKieliszek t1_j5y6ukq wrote
Reply to comment by Meerv in I got cut off by a taxi driver last week. I was walking through town today and I saw him at the back of the queue at the taxi rank. I got in the first taxi in the queue and said "How much to the station ?" "$5" said the driver. "And how much for a blow job ?" I asked him. by AdeptLengthiness8886
Orangutans are most definitely apes. It might be I'll advised to refer to one using the M-word.
PatrickKieliszek t1_j56qgmt wrote
Reply to comment by GoArray in The Lights Have Been On At a Massachusetts School For Over a Year Because No One Can Turn Them Off by AStartIsBorn
I have been on a project that no one put a manual switch on. I insisted they add one. No one wanted to. Eventually they complied because I wouldn't stop saying we needed it.
Adding the shut-off cost less than a thousand dollars. Probably saved sevral thousand hours of machine downtime over the life of the project.
PatrickKieliszek t1_j4ux5bz wrote
Reply to comment by Force3vo in What happens to the energy of sound in space? by full_hammer
What do you mean lately?
PatrickKieliszek t1_j1j3wii wrote
Reply to comment by [deleted] in Are people in the international space station experiencing time faster than us? by [deleted]
Gravity causes time to run more slowly. Speed also causes time to run more slowly.
On the surface of the Earth, we have higher gravity. This causes our clocks to run slower.
The ISS is moving much faster than we are. This causes their clocks to run slower.
The ISS is not that high up and it it moving VERY fast. The slowing effect from their high speed is greater than the slowing effect from our higher gravity.
Their clocks run ever so slightly slower than ours.
PatrickKieliszek t1_izo5c6g wrote
Reply to comment by valdocs_user in What is the average voltage between Earth and outer space? by dvorahtheexplorer
The solar wind is full of both positively charged hydrogen and free electrons.
The Earth's magnetic field captures more electrons than protons because the protons are more massive.
Eventually the net negative charge of the earth is enough to balance out the effect of the magnetic field and the rate of capture becomes even.
This causes the earth as a whole to have a slight negative charge.
PatrickKieliszek t1_ixxbped wrote
Reply to comment by Columbus43219 in When prehistoric land masses are depicted, what is the accuracy to which they are drawn. Would the maps produced be useful for navigating that world? by TheRealPopcornMaker
We could work out the star charts to an accuracy where they would be useful. Only unpredictable thing would be the addition of some stars that have died in the last 500,000 years.
Those shouldn't be hard to screen out.
PatrickKieliszek t1_iujc2s4 wrote
Reply to comment by Kraz_I in What is the actual mechanism by which the body generates a fever? by Pheophyting
Although evaporation dominates as a method of heat loss, there are two biological mechanisms that I am aware of that can additionally decrease dry conduction.
Capillary constriction in the skin reduces blood flow and makes the skin a more efficient insulator.
Piloerection of hair follicles helps trap air against the skin and improve insulation (works better on hirsute people and is mostly redundant in people that wear clothing).
PatrickKieliszek t1_je1s5yi wrote
Reply to comment by Mord42 in Is NaCl relatively common in the galaxy/universe? by PHealthy
There are actually some exothermic reactions that produce elements more massive than iron.
However, these are usually very short lived in the time immediately before supernovae and are limited by photodisintegration. They don't meaningfully contribute to the amount of heavier elements (Which are primarily produced during nova).