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Rasmus Wendelbo
Приєднався 14 чер 2013
Jeg er gymnasie-lektor og underviser i kemi, biologi og informatik gennem 10+ år.
Відео
Allelfrekvenser for kønsbundne egenskaber
Переглядів 213 роки тому
Allelfrekvenser for kønsbundne egenskaber
Ilt's optagelse og afgivelse i kroppen
Переглядів 1894 роки тому
Ilt's optagelse og afgivelse i kroppen
that thing be scratchin the floor more than walking
Mega fedt! kunne dog være fedt hvis du i skemaet også havde skrevet dine udregninger :-)
Super video
god video. du har lært mig mere ind min kemi lære
Dear sir please give me a program
Jeg forsøger og tillader mig at prøve at stille et spørgsmål... For der er en ting der ikke giver mening for mig. Men det er jeg jo heller ikke noget jeg bruger normalt... :-) Men hvordan kan det være at mængden af H Hydrogen, har indflydelse på mængden CO2, kunne bedre forstå hvis den blev en del af H2O vand? På forhånd tak for svaret... :-)
Hej :D
Du mener helt sikkert 1,5 kg og ikke ton, men man kan jo komme til at sige forkert... :-) ok video i at prøve at finde forståelsen i sådan en udregning....
Halløj
Skal vandet koge for en mild oxidation ?
Hvad sker der hvis der kommer en redox reaktion mellem bønner og tærte?
tak
Really super, but I guess you must to bring this animal to Dr. Pol's veterinary clinic. ;)
stensikkert 12 tal
Spændende emne og god diskussion
Ja
dav
Hejsa
Formlen for heptan er C7H16 (ikke C7H14)
Super vidio
thanks :)
Congratulations excelentte project was very good, can you share the code used and the assembly scheme friend ???
Nice video
That's mad!
Hi, could you tell me which pinout are you using in rs232 Com?
good
10/10 would use again
Tak for en særdeles informerende og til tider underholdende video!!!
Så det vil sige, at 2C8H18 er den begrænsende reaktant? og er den man skal bruge for at kunne beregne 25O2. Hvor stykket skal lyde således: M: Molarmasse n: Stofmængde m: masse M(O2): 15,999 g/mol n(C8H18): 6,128 mol n(O2): = 25 * n(C8H18) = 25 * 6,128 mol = 153,2 mol m(O2): 15,999 g/mol / 6,128 mol = 2451 g Hvilket passer overens med bogen Basis-Kemi C på s. 93, øverst.
tak, en meget fin forklaring.
Skide godt min navnebror!
??
what is he doing
Good idea. What's pin config between micro bit and motor driver ?
bullshit
When in the Course of human events it becomes necessary for one people to dissolve the political bands which have connected them with another and to assume among the powers of the earth, the separate and equal station to which the Laws of Nature and of Nature's God entitle them, a decent respect to the opinions of mankind requires that they should declare the causes which impel them to the separation. We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. - That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, - That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness. Prudence, indeed, will dictate that Governments long established should not be changed for light and transient causes; and accordingly all experience hath shewn that mankind are more disposed to suffer, while evils are sufferable than to right themselves by abolishing the forms to which they are accustomed. But when a long train of abuses and usurpations, pursuing invariably the same Object evinces a design to reduce them under absolute Despotism, it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security. - Such has been the patient sufferance of these
one people?
idfk
k
@@BeachlessIsland [people]
Virkelig god video, forstår det nu. tak :)
#fredagAften
Mikkel hvem du end er, det lige mine ord. DEN BEDSTE ROBOT NOGENSINDE!!!!!!!!!!!!!
WOW, DET ER NOK DEN BEDSTE ROBOT NOGENSINDE!!!
Tak, men hvad så med de sidste to felter? altså CO2 og h2o?
Dem kan man beregne på en tilsvarende måde, men det er ikke vist i videoen (y)
@@rasmuswendelbo9207 Jeg forstår ikke hvad den givne information er i højre side af skemaet i første række. Venlig hilsen
@@knubbe113 Mener du ordet "masse" (det står til venstre i øverste række under reaktionsskemaet)?
Hi Rasmus, nice demo. Are you using the build in gyro and accelerometer? I expect you'll get better results from having a lower center of gravity (so battery etc slung between the wheels).
Thx. The build-in accelerometer! Still can't get a stable system. No easy, many issues: accelerometer sensitivity, DC motor response and power request. I hope someone will succeed with a similar µbit-project.
@@rasmuswendelbo9207 I'm about to create a balancing Microbit. I switched to Mbed and C/C++ programming. Seems to be 10 to 20 times faster than Javascript or Blocks. And this needs speed! But the accelerometer might not be enough for getting it balanced. I believe a gyro is also needed to compensate the change in acceleration, when the vehicle actually accelerates sideways, when trying to balance.
Very nice project but probably much more physics is needed to make it work. Actually it is harder to balance something with lower center of gravity. The problem can be the delay and that there is no gyroscope. You can only use the gravity as a reference but this thing is moving so there are other accelerations. It seems to be possible but not an easy task to infer the other accelerations, speed, position and angular acceleration, angular velocity, angle, also the position of the accelerometer is important.: www.semanticscholar.org/paper/Balancing-a-wheeled-inverted-pendulum-with-a-single-Xu-St%C3%A9p%C3%A1n/f07982d46bb4db2f2bdcf251c8960cd538ae494f As I looked up this topic I found out that one of my professor is a co-author of this paper, Dr. STÉPÁN Gábor :) Another tip of mine: you can try to use the magnetometer's vector as a relative angular sensor but the motors can affect the nearby magnetic field so maybe the signal is useless, anyway you can give it a try.
very good
very good
sejt. hvad er dens feedback?
newgame hej. nærmere beskrivelse: gymlab.dk/2017/06/simpel-robot-med-machine-learning/
Rasmus Wendelbo tak. vh Søren
Hahhaha
Tak for videoen. Du hjalp mig "big time" med eksamenen! :D
Ser godt ud :-)